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Simulating the Solow Growth Model

How does an economy well-approximated by the Solow growth model—one that has a constant labor-force growth rate n and labor-efficiency growth rate g; a constant savings-investment share of production s and capital deprecation rate δ; and a constant elasticity θ of production Y with respect to the economy's capital intensity κ, where capital intensity is defined as κ = K/Y, the quotient of the economy's capital stock K and its production level Y—behave? What does it do? How are you—if you are a student—to understand it? And to use it?

Standard explanations often focus on graphs like:

Solow_growth_model_graphs

which are often unhelpful.

With this class I would like—if I can get it working—to take another tack. If you have a Berkeley CalNet account, click on this link: https://datahub.berkeley.edu/hub/user-redirect/git-pull?repo=https%3A%2F%2Fgithub.com%2Fbraddelong%2Flecture-support-2020&urlpath=tree%2Flecture-support-2020%2F. If you have access to another Jupyter notebook server, go to https://github.com/braddelong/lecture-support-2020. In either case, then open the file: lecture-support-solow-2020-01-23.ipynb. You should then have, open, my Solow Growth Model Simulator. Click in the second code cell—the one whose first line is—"# SET PARAMETERS, INITIAL CONDITIONS, AND SCENARIO LENGTH IN THIS CELL". You can now edit the text in this code cell. Do so in order to either accept defaults or change the variable assignment statements (those with no "#" in the first column and an "=" sign in them to set values for the model parameter in the lines:

  • n = 0.01 # the labor-force L proportional growth rate
  • g = 0.02 # the labor-efficiency E proportional growth rate
  • s = 0.12 # the share of production Y that is saved and invested
  • δ = 0.03 # the capital depreciation rate
  • θ = 1.09 # the elasticity of production Y with respect to capital intensity κ

Then click lower down and edit in order to accept default or choose alternative starting values L_0, E_0, and κ_0 for the initial values as of time 0 for the labor force, labor efficiency, and capital intensity in the lines:

  • L_0 = 1
  • E_0 = 1
  • κ_0 = 8

Then click lower down again and either accept the default or choose the length of time for which the simulation will run in the lines:

  • T = 100

Then go up to the top of your environment. In the "Kernel" drop down menu click on "Restart Kernel and Run All Cells"

Then scroll down the webpage. If all has gone well you should see, interspersed among the code, ten graphs showing how each of and some combinations of the model variables behave over time.

Note what looks interesting. Then go back to the top, and change something in the second code cell. Once again, go up to the top of your environment, and in the "Kernel" drop down menu click on "Restart Kernel and Run All Cells". What has changed? What strikes you as interesting? Take notes.

Repeat until you think you have an understanding of how an economy that happened to be well-modeled by the Solow growth model would behave.

The assignment? Write 200-300 words on the simulations you carried out, why you chose the parameter values and starting conditions you did, what (if anything) you learned from this exercise, and how useful you think models and exercises like this are in understanding economic growth out there in the real world.


https://nbviewer.jupyter.org/github/braddelong/lecture-support-2020/blob/master/lecture-support-solow-2020-01-23.ipynb

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1.1. Theory: Robert Solow's Growth Model: The History of Economic Growth: Econ 135

Th Jan 23: Robert Solow's Growth Model


Notes & Further Readings:

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Lecture Notes: The Solow Growth Model: The History of Economic Growth: Econ 135

Jupyter (formerly iPython) notebook:

https://nbviewer.jupyter.org/github/braddelong/long-form-drafts/blob/master/solow-model.ipynb
https://nbviewer.jupyter.org/github/braddelong/long-form-drafts/blob/master/solow-model-2-basics.ipynb
https://nbviewer.jupyter.org/github/braddelong/long-form-drafts/blob/master/solow-model-3-growing.ipynb
https://nbviewer.jupyter.org/github/braddelong/long-form-drafts/blob/master/solow-model-4-using.ipynb
https://nbviewer.jupyter.org/github/braddelong/long-form-drafts/blob/master/solow-model-5-pre-industrial.ipynb

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0. Introduction: The History of Economic Growth: Econ 135

Rosling-dollar-street

T Jan 21: Growth in Historical Perspective, Humans and Their Economies


Notes & Further Readings:

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-1. Before Class Begins: The History of Economic Growth: Econ 135

Jetsons

  1. Acquire: An iClicker, and access to the course readings

  2. Read: Course administration documents https://delong.typepad.com/files/135-course-summary.pdf https://delong.typepad.com/files/135-course-procedures.pdf https://delong.typepad.com/files/135-administrative.pdf

  3. Read: Partha Dasgupta (2007): Economics: A Very Short Introduction, Prologue & chapters 1-4 https://delong.typepad.com/files/dasgupta-economics.pdf

  4. Read: Aristotle: Politics, Book I https://delong.typepad.com/files/aristotle-politics-book-i.pdf

  5. Do Assignment 1 (3 pts) https://tinyurl.com/dl-2020-01-18a: Write & answer a syllabus FAQ question, due T Jan 21 9:00 am.


Notes & Further Readings:

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The History of Economic Growth: Econ 135: Assignments

Suggested Question (and Answer) for Course FAQ List: Assignment 1: Read the syllabus documents: https://delong.typepad.com/files/135-course-summary.pdf https://delong.typepad.com/files/135-course-procedures.pdf https://delong.typepad.com/files/135-administrative.pdf

Using the information in the syllabus, think up a question that should be on the FAQ—the Frequently Asked Question—list for the course.

Answer the question you thought up.

Upload your question and answer to your account at the course on canvas.

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Reading Notes on Book I of Aristotle's "Politics"

Let me remind you about Aristoteles son of Nikomakhos of Stagira:

He lived from -384 to -322, in the Greek-speaking communities around the Aegean Sea. He spent most of his time in Athens. For the two millennia following his death, he would be, for a large chunk of the world, THE Philosopher: capital “P” and capital “THE”. 1650 years after his death, poet Dante Alighieri would call him “the Master… of those who know”, “il Maestro di color che sanno”. Aristotle’s was, even at so long a distance in time, the most powerful intellectual name that one could conjure with...


https://www.icloud.com/pages/0nLIYWAFXAkPWR0xug-NT21vg


https://www.icloud.com/keynote/0SKox_f6G3cEvDxV-biXLgcPA


Aristotle: Politics, Book I https://delong.typepad.com/files/aristotle-politics-book-i.pdf

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"There Speaks the Nineteenth Century!": For the Weekend

stacks and stacks of books

For the weekend: One powerful and very common presumption among the thinkers of the nineteenth century was that if the problems of overpopulation could be solved, and if that coupled with better technology solved the problem of inadequate resources to provide necessities, then the distribution of conveniences and luxuries would take care of itself, and the distribution of necessities would be unproblematic as an immediate consequence of common humanity in an age of abundance. They were wrong:

Edward Bellamy: Looking Backward 2000-1887 https://delong.typepad.com/files/bellamy-backward.pdf: '“Who is capable of self-support?” he demanded. “There is no such thing in a civilized society as self-support. In a state of society so barbarous as not even to know family coöperation, each individual may possibly support himself, though even then for a part of his life only; but from the moment that men begin to live together, and constitute even the rudest sort of society, self-support becomes impossible. As men grow more civilized, and the subdivision of occupations and services is carried out, a complex mutual dependence becomes the universal rule. Every man, however solitary may seem his occupation, is a member of a vast industrial partnership, as large as the nation, as large as humanity. The necessity of mutual dependence should imply the duty and guarantee of mutual support; and that it did not in your day constituted the essential cruelty and unreason of your system”...

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Eternal September: How Trolls Overran the Public Square: Project Syndicate

How_Trolls_Overran_the_Public_Square_by_J__Bradford_DeLong_-_Project_Syndicate

Project Syndicate: How Trolls Overran the Public Square https://www.project-syndicate.org/commentary/trolls-win-control-of-the-public-square-by-j-bradford-delong-2019-12: Since the invention of writing, human innovation has transformed how we formulate new ideas, organize our societies, and communicate with one another. But in an age of rapid-fire social media and nonstop algorithm-generated outrage, technology is no longer helping to expand or enrich the public sphere: Every year since 1900 we have had change in human technology and organization at a blistering pace: human productivity, organization, and technological capabilities now change at a rate that packs into one year what would have been 50 years of change back before 1500. It used to be that culture, war, the rise and fall of individuals' statuses, and politics were the meat of human history, with technology and organization much of an unchanging background, and productivity growing only very slowly on average. But that is not the world we live in today.

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Which Political Party's Policies Boost Investment in America, Again?

Investment-presidents

  • Suppose you were a stranger to humanity, and looked at this graph of trends in the investment share of output under various administrations.
  • Would you then credit the claim that the red-presidents political party was dedicated to boosting investment in America, and that the blue-presidents political party was dedicated to sacrificing investment and growth to achieve egalitarian redistributional social goals?
  • No.
    • One might claim that presidents don't control the economy or economic policy.
    • But presidents get most of what they ask for in terms of economic policy, and economic policy has a substantial impact on the actual economy.
    • One might claim that the big collapses of investment from the S&L and the subprime housing crises were bad luck for both Bush presidents.
    • But didn't mis- and under-regulation have something to do with it?

FRED: Gross Private Domestic Investment/Nominal Potential Gross Domestic Product https://fred.stlouisfed.org/graph/?graph_id=516170&rn=79#0...

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Convergence

Introduction

Outside of the charmed magic circle of western and central Europe, North America, and the other Anglo-Saxon settler colonies, few indeed are the economies that have managed successful economic development in the sense of convegence: materially closing any significant fraction of their productivity and living standards gap vis-a-vis the world's economic leaders. The Northeast Asian Pacific Rim, now including China; further south, Malaysia, Thailand, Indonesia, and Vietnam; India and Sri Lanka; elsewhere, Turkey, Chile, Botswana, Mauritius, and Cabo Verde. That is all. And with perhaps one or two exceptions, those few have followed the particular economic development path of using low-wage manufacturing exports to nurture their domestic communities of engineering practice—a path that is now closing.

It has long been easy to see the glass half-full with respect to global economic growth: technologies and organizational forms can be imitated and adopted, do diffuse, and even the poorer parts of the globe are much richer than they were two or one or even half a century ago. It has been much harder to see the glass half-full with respect to convergence: the catching-up and closing of the gap vis-a-vis the world's industrial leaders. Why have so few countries been able to walk the path? And what are our prospects for the future? With the prospective closing of the standard parth for convergence, seeing the glass half-full is becoming harder: perhaps there will be no glass at all.

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Milton Friedman (1982): Free Markets and the Generals: Weekend Reading

Milton Friedman* (1982): Free Markets and the Generals: "The adoption of free-market policies by Chile with the blessing and support of the military junta headed by General Pinochet has given rise to the myth that only an authoritarian regime can successful ly implement a free-market policy. The facts are very different. Chile is an exception, not the rule. The military is hierarchical, and its personnel are imbued with the tradition that some give and some obey orders: it is organized from top down. A free market is the reverse. It is voluntaristic, authority is dispersed; bargaining, not submission to orders, is its watchword; it is organized from the bottom up...

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Note to Self: Industrial Policy in Korea: Readings:

Alice Amsden (1989): Asia's Next Giant https://www.google.com/books/edition/Asia_s_Next_Giant/j0E9qKIqD-cC chs. 1-6...

Nathan Lane (2019): Manufacturing Revolutions: Industrial Policy and Networks in South Korea https://delong.typepad.com/lane-korea.pdf...

L.E. Westphal: (1990): Industrial Policy in an Export Propelled Economy: Lessons from South Korea’s Experience https://delong.typepad.com/files/westphal.pdf

Ha-Joon Chang (1993): The political economy of industrial policy in Korea." Cambridge Journal of Economics 17.2 (1993): 131-157 https://delong.typepad.com/files/chang.pdf

Rodrik, Dani. "Getting interventions right: how South Korea and Taiwan grew rich." Economic Policy 10.20 (1995): 53-107 https://delong.typepad.com/files/rodrik-korea-taiwan.pdf

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Weekend Reading: Dietz Vollrath: Deep Roots of Development

Latin_American_Growth_1969-2010

Dietz Vollrath: The Deep Roots of Development: "Think statistically, rather than in absolutes.... It is plausible that ethnic groups in areas where there were large returns to long-run investment in agricultural production may end up more patient in the long-run as well.... There is a significant relationship of productivity with patience... but the R-squared is about 10%.... [And] the results don’t mean that ethnic group A with higher productivity had to have higher patience than group B with lower productivity.... Lots of other things affect the patience of an ethnic group over and above the productivity level, and hence lots of things could have changed over the course of history to explain patience.... The findings... do not mean it is impossible to change the development level of countries or groups today. But the deep-rooted nature of development may mean we have to find other policy levers to push, as we cannot go back in time and roll back colonization, or change inherent agricultural productivity...

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Note to Self: Lessons from East Asian Development: Japanese Industrial Policy: Readings:

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Grand Narrative: An Intake from Slouching Towards Utopia?: An Economic History of the Twentieth Century, 1870-2016

Il Quarto Stato

Slouching Towards Utopia?: An Economic History of the Twentieth Century, 1870-2016

I. Grand Narrative

J. Bradford DeLong :: U.C. Berkeley, NBER, WCEG https://www.icloud.com/pages/0TzensY9YyNvqcY8elYagLUnQ https://www.icloud.com/keynote/0_nA1dc3XLgFa_2rEVsk3nuWQ

1.1: The Long 20th Century in Human History

The Long 20th Century began around 1870 and ended in 2016.

Before 1870 humanity was poor, and life was typically nasty, brutish, and short. Before 1870, over and over again, technology lost its race with human fecundity, and greater numbers coupled with resource scarcity to produce a humanity where most people most of the time could not be confident that they and their families would have their 2000 calories, plus essential nutrients, plus a roof over their head in a year. Before 1870 those on the make overwhelmingly focused on how to take from others or keep what they had while maintaining order, rather on how to make more for everyone. It is true that between 1800 and 1870 technology and organization gained a step or two in their race with fecundity. But only a step. Any post-1870 slackening of the pace of technological or organizational progress, or any major redivision of society’s dividends devoting less to the sinews or peace and more to the sinews of war, and “nasty, brutish, and short” would reassert itself.

But starting in 1870 all that changed. Science reached critical mass and gave birth to engineering. A liberal political order gave birth to a market economy. Engineering and the market produced an explosion of economic growth: these days one single year sees as much proportional technological and organizational advance and change in the human economy as a typical fifty years did back before 1800.

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DevEng 215: Pre-Class Note: Welcome!

Il Quarto Stato

Let us set the scene with an introductory note:

Back in 1800, nearly the entire world lived in dire poverty—what we today see as the dire poverty line of $1.90 a day, a level at which you are spending more than half your income on bare calories and essential nutrients, the minimum of heat and shelter, and the minimum of clothing. Below that line, certainly your health and perhaps your life is impacted: women become too skinny to reliably ovulate, and children become too malnourished to have healthy and effective immune systems. Back in 1800, there were only a few economies where the median household had a standard of living of more than $3 a day: Germany, France, Austria, Denmark, Belgium, Holland, Switzerland, the U.K., the U.S., and that was it.

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American Twentieth-Century Exceptionalism: An Outtake from "Slouching Towards Utopia: An Economic History of the Long Twentieth Century 1870-2016"

Il Quarto Stato

Sources of American Exceptionalism

In 1870 the focus of economic growth crossed the Atlantic to America, where continent-wide scale, a flood of immigration, vast resources, and an open society that made inventors and entrepreneurs culture heroes welcomed economic growth. In the United States the Belle Époque, the Gilded Age, the period of the explosion of prosperity set in motion around 1870 lasted without interruption longer than elsewhere in the world. China collapsed into revolution in 1911. Europe descended into the hell of World War I in 1914. In America the period of progress and industrial development lasted longer—perhaps from when the guns fell silent at the end of America’s Civil War at Appomattox in 1865 until the start of the Great Depression in the summer of 1929.

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Introducing Partha Dasgupta: Economics: A Very Short Introduction

479 Social Capital and Natural Resources Sir Partha Dasgupta YouTube

Introducing Partha Dasgupta: Economics: A Very Short Introduction

http://amzn.to/2gR2jH3

Back in 1800, nearly the entire world lived in dire poverty—what we today see as the dire poverty line of $1.90 a day, a level at which you are spending more than half your income on bare calories and essential nutrients, the minimum of heat and shelter, and the minimum of clothing. Below that line, certainly your health and perhaps your life is impacted: women become too skinny to reliably ovulate, and children become too malnourished to have healthy and effective immune systems. Back in 1800, there were only a few economies where the median household had a standard of living of more than $3 a day: Germany, France, Austria, Denmark, Belgium, Holland, Switzerland, the U.K., the U.S., and that was it.

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Ancient Economies: A Malthusian Model: Markdown Notebook

DRAFT: Ancient Economies: A Malthusian Model : The math for complicating the standard Solow Growth Model with (a) a rate of population growth that depends positively on the excess of spending on necessities above "subsistence" and (b) a level of the efficiency-of-labor that depends inversely on population, as a higher population induces resource scarcity that makes labor less productive. For understanding both the long-term apparent stagnation of living standards between the Neolithic and the Industrial Revolutions, and for understanding the rise and fall of ancient civilizations. Question: How should we add on to the Python class for the Solow Growth Model to turn this into a tool for doing problem sets for Econ 101b (and perhaps 135):

https://nbviewer.jupyter.org/github/braddelong/LS2019/blob/master/2019-08-17-Ancient_Economies.ipynb

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Note to Self: Playing with Sargent-Stachurski QuantEcon http://quantecon.org: I have long been annoyed with the standard presentation of the Solow Growth Model because the state variable k—capital per effective worker—is not observable in the real world, while the capital-output ratio κ is. Moreover, the steady-state capital-output ratio has an easy to remember and intuitive description: it is the savings rate divided by the economy's steady-state investment requirements. Capital per effective worker has no such intuitive description. Plus the capital-output ratio exhibits exponential convergence to the steady-state. Capital per effective worker does not:

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Robo-Apocalypse? Not in Your Lifetime: No Longer Fresh at Project Syndicate

Robo Apocalypse Not in Your Lifetime by J Bradford DeLong Project Syndicate

No Longer Fresh at Project Syndicate: Robo-Apocalypse? Not in Your Lifetime: "Will the imminent “rise of the robots” threaten all future human employment? The most thoughtful discussion of that question can be found in MIT economist David H. Autor’s 2015 paper, “Why Are There Still so Many Jobs?”, which considers the problem in the context of Polanyi’s Paradox. Given that “we can know more than we can tell,” the twentieth-century philosopher Michael Polanyi observed, we shouldn’t assume that technology can replicate the function of human knowledge itself. Just because a computer can know everything there is to know about a car doesn’t mean it can drive it. This distinction between tacit knowledge and information bears directly on the question of what humans will be doing to produce economic value in the future... Read MOAR at Project Syndicate

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Reda Cherif and Fuad Hasanov: Principles of Industrial Policy: Weekend Reading

Principles of industrial policy VOX CEPR Policy Portal

Reda Cherif and Fuad Hasanov: Principles of Industrial Policy: "The return of the policy that shall not be named: The 'Asian miracles' and their industrial policies are often considered as statistical accidents that cannot be replicated.... We can learn more about sustained growth from these miracles than from the large pool of failures.... Industrial policy is instrumental in achieving sustained growth. Successful policy uses state intervention for early entry into sophisticated sectors, strong export orientation, and fierce competition with strict accountability...

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Hoisted from Eleven Years Ago: Poverty Traps: The High Price of Investment Goods in Poor Countries

Untitled key

Hoisted from Eleven Years Ago: Poverty Traps: The High Price of Investment Goods in Poor Countries http://www.bradford-delong.com/2007/06/poverty-traps-t.html:Here is how Larry Summers and I formulated it back in the early 1990s, and I believe that we were correct:

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Interview: "NAFTA Is Just Not a Big Deal for the U.S.": Hoisted from the Archives from 2017

Shenzhen skyline 2015 Google Search

Joseph Ford Cotto: J. Bradford DeLong says "NAFTA is just not a big deal for the U.S.", explains why: "Support for Bernie Sanders and the Donald did not rise out of nowhere, after all. In such turbulent waters as these, it is important to seek the guidance of a wise, seasoned captain. Insofar as the sea of dollars and cents is concerned, J. Bradford DeLong is just that fellow. He is "a professor of economics at UC Berkeley, a weblogger for the Washington Center for Equitable Growth http://equitablegrowth.org/blog, a research associate of the National Bureau of Economic Research, and former deputy assistant secretary of the U.S. Treasury in the Clinton administration .... He also writes the weblog Grasping Reality: http://bradford-delong.com," as DeLong's U.C.B. biography explains. Dr. DeLong recently spoke with me about many topics relative to our nation's economy. Some of our conversation is included below....

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PREVIEW: Economic Growth in Historical Perspective: U.C. Berkeley: Spring 2020

After hearing Ellora Derenoncourt rave about being a TA for Melissa Dell and her Econ 142: The History of Economic Growth, I have decided to go full parasite and stand up my own version of the course for the spring of 2020 here at U.C. Berkeley. Tell me what you think! Here are my notes so far:


Course to be at: Teaching Economics: https://delong.typepad.com/teaching_economics/econ-135.html


Econ 135: Economic Growth in Historical Perspective

This course examines the idea and reality of economic growth in historical perspective, beginning with the divergence between human ancestors and other primates and continuing through with forecasts for the 21st century and beyond. Topics covered include human speciation, language, and sociability; the discovery of agriculture and the domestication of animals; the origins and maintenance of gross inequality; Malthusian economies; the commercial and industrial revolutions; modern economic growth; international prosperity differentials; OECD convergence and East Asian miracles; the political economy of growth and stagnation; and the stubborn persistence of poverty.

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Modern Assembly Line

Note to Self: Comment on Richard Baldwin: The Globotics Upheaval: Globalization, Robotics, and the Future of Work: Start from the observation the the human brain is a massively-parallel supercomputer that fits inside a breadbox and draws 50 watts of power.

For 6,000 years, since the domestication of the horse, human backs, human thighs, and human fingers have becoming less powerful as sources of economic value, as animals and machines have increasingly competed with and substituted for them. Up until recently, however, every domesticated animal every machine had required a microprocessor. And the highly-productive decentralized societal division of labor of enormous extent created huge and increasing amounts of need for white-collar information processing: the accounting, control, transmission of information, and purveyance of misinformation jobs that are most of what people like us here do. Thus while human backs and thighs and fingers became less powerful as sources of economic value as time passed, human brains become more valuable. But now we have robots which contain their own microprocessors, and software 'bots that handle huge amounts of the white-collar information processing. So the job-creating aspects of technological creative destruction are now open to question

From this standpoint, we can worry along either of two dimensions:

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Writing Bulls--- for the WSJ Op-Ed Page as a Career Strategy: The Nine Unprofessional Republican Economists

The extra quarter's worth of data from the new BEA NIPA release raises this, once again, to the top of the pile: Note the contrast between the path of investment, on the one hand, implicit in the growth forecast of the effects of the Trump-Ryan-McConnell tax cut that Robert J. Barro, Michael J. Boskin, John Cogan, Douglas Holtz-Eakin, Glenn Hubbard, Lawrence B. Lindsey, Harvey S. Rosen, George P. Shultz and John. B. Taylor, and, on the other hand, reality:

Real Gross Private Domestic Investment Real Potential Gross Domestic Product 1 06 FRED St Louis Fed

If you are even 10% in the explain-the-world business—if you are even 1% in the explain-the-world business—such a sharp disjunction between what you had predicted and the outcome calls forth curiosity, interest, and explanations of why you think you went wrong and what your future research projects will be to figure it out.

Only if you are 100% in the I-am-engaging-in-vice-signalling-by-writing-bulls----to-please-my-political-masters business are you left doing <crickets> in response to such a very sharp disjunction between your predictions and reality.

Yet as I listen to each and very one of the Nine Unprofessional Republican Economists, all that I hear is: <crickets>...

Come to think of it, none of the nine has dared to see that Steve Moore is unqualified to serve on the Federal Reserve, either—and two of the nine, Taylor and Lindsey, are, I am assured, in his corner...

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"Unexpected Convergers" since World War II

What countries outside of those already-rich Anglo-Saxon settler colonies and the North Atlantic economies have "converged" or are "converging". What are the "unexpected converters:? These:

 

High-Income Non-North Atlantic Convergers: Japan, South Korea, Singapore, Hong Kong, Taiwan:

Singapore US

South Korea US

Japan US

 

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Economics, Identity, and the Democratic Recession: Talking Points

Event: Tu 2019-04-09 10-11am CFR: 58 E. 68th St., New York, NY:

Untitled 7 pages

The Data

  • 1970s a bad decade for real incomes—oil shocks, environmental cleanup, baby boom entry into the labor market
  • End of 1970s sees shift to "neoliberalism" to fix the "excesses of social democracy"
  • Since 1980: males and those with low education have seen their expectations of what their lives would be like bitterly disappointed
    • Male high school graduates down by 17%
    • Males with advanced degrees up by 25%
    • Whites have not been disappointed more economically—what William Juilius Wilson called the "declining significance of race"
      • Save, perhaps, for Black women with BAs...
    • Sociological disappointment in addition?
    • Within-household economic disappointment?
    • Other aspects of the economic besides income?
      • Occupation and occupational stability
      • Employment stability

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Greenspan and Wooldridge Argue the American Love and Embrace of Capitalism Is the Key...

Il Quarto Stato

The world as a whole is much richer than it was three centuries ago. Back then, at the end of the long era since the invention of agriculture, the typical human lived on two dollars a day, had a life expectancy at birth of 25, and was protein deprived in utero. Mothers worldwide no longer run a one-in-six chance of dying in childbed. Literacy in no longer a rare accomplishment. Less than one in six humans worldwide live like all of our pre-industrial ancestors—and even those less-than-one-in-six likely have some access to the village smartphone.

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The Lighting Budget of Thomas Jefferson: DeLong's Morning Coffee

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Morning Coffee Podcast: The Lighting Budget of Thomas Jefferson: Should the U.S. fall into recession soon, the Federal Reserve will have very little room to loosen policy to cushion the downturn. This is a large asymmetric risk. The right way to manage an asymmetric risk is to buy insurance: the Federal Reserve should be buying recession insurance. It is not. This is a substantial problem...

8:02: https://delong.micro.blog/2019/03/17/the-lighting-budget.html | https://delong.micro.blog/uploads/2019/708e9b89bf.mp3

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The Lighting Budget of Thomas Jefferson

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On December 21, the sun sets at Monticello at 4:57 pm. Civil twilight—when there is still enough light to conduct normal activities—ends at 5:27 pm. By March 21, the sun sets at 6:26 eastern standard time—Monticello is west of the center of America's eastern time zone—and civil twilights ends at 7:52. And on June 21 the sun sets at Monticello at 7:39 pm. Civil twilight ends at 8:11 pm (standard time). Even in the summer, moreover, Thomas Jefferson was unlikely to want to go to sleep when it got dark, with the chickens.

Hence his concern with candles:

1791 September 15: I will now ask the favor of you to procure for me, in the proper seasons 250 lb. of myrtle wax candles, moulded, and of the largest size you can find...

1792 January 24: Myrtle candles of last year out...

1792 November 4: I must now repeat to you my annual sollicitation to procure and send me 200 ℔ myrtle wax candles. I do not know whether the mixing tallow with the wax be absolutely necessary. If not, I would wish them of the pure wax; but if some mixture be necessary, then as little as will do...

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Still Haunted by the Shadow of the Greater Recession...


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Real Gross Domestic Product FRED St Louis Fed

Note to Self: Current forecast for 2018QIV GDP growth: 2.0%. Current forecast for 2019Q1 GDP growth: 1.5%. All of these people are now very, very quiet:

  • Robert J. Barro, Michael J. Boskin, John Cogan, Douglas Holtz-Eakin, Glenn Hubbard, Lawrence B. Lindsey, Harvey S. Rosen, George P. Shultz and John. B. Taylor: How Tax Reform Will Lift the Economy: "A conventional approach to economic modeling suggests that such an increase in the capital stock would **raise the level of GDP in the long run by just over 4%. If achieved over a decade, the associated increase in the annual rate of GDP growth would be about 0.4% per year...

  • Robert Barro (endorsed by Mike Boskin): How US Corporate-Tax Reform Will Boost Growth: "Gauging the effects of the tax-law changes on the costs (referred to as user costs) that businesses attach to investment in equipment and structures. Then I estimate long-run responses of the capital-labor ratio to the changes in user costs.... If we thought of C-corporations as corresponding to the whole economy, the changes in capital-labor ratios would imply a rise in long-run real per capita GDP by about 8.4%.... I made a rough downward adjustment of the long-run level effect from 8.4% to 7%...

  • James C. Miller III, Douglas Holtz-Eakin... Barry W. Poulson... Charles W. Calomiris... Donald Luskin... 95 others: Pass tax reform and watch the economy roar: "A twenty percent statutory rate on a permanent basis would, per the Council of Economic Advisers, help produce a GDP boost 'by between 3 and 5 percent'.... It is critical to consider that $1 trillion in new revenue for the federal government can be generated by four-tenths of a percentage in GDP growth. Sophisticated economic models show the macroeconomic feedback generated by the TCJA will exceed that amount—more than enough to compensate for the static revenue loss...

  • Susan Collins: Twitter: "On @MeetThePress today said that she had talked to [Holtz-]Eakin, Lindsay and Hubbard and they believed that the supply side stimulus would produce an increase on government revenue. This is problem when other side alleged serious people are really hacks.

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"Gunpowder Empire": Should We Generalize Mark Elvin's High-Level Equilibrium Trap?: Hoisted from the Archives

Natalie Pierson A Comparative Look at the Gunpowder Empires

Hoisted from the Archives: "Gunpowder Empire": Should We Generalize Mark Elvin's High-Level Equilibrium Trap?: OK. Popping the distraction stack again. A chance remark by the extremely sharp Cosma Shalizi when he came through Berkeley has caused me to spend a lot of time meditating upon a passage written by Bob Allen:

Robert Allen (2006): The British Industrial Revolution in Global Perspective: "The different trajectories of the wage-rental ratio created different incentives to mechanize production.... It was not Newtonian science that inclined British inventors and entrepreneurs to seek machines that raised labour productivity but the rising cost of labour... due to... Britain’s success in the global economy... in part the result of state policy... Britain['s] vast and readily worked coal deposits...

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Commonwealth Club Talking Points (January 25, 2019): Forecasting and Steve Moore Edition

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The Shutdown: Let's review the bidding: Pelosi, Ryan, McCarthy, Schumer, McConnell, Trump reached a deal. Deal passes Senate unanimously. Trump watches "Fox and Friends". Trump announces he won't sign the deal. Paul Ryan—desperate not to embarrass Trump more—won't let the House vote on the deal. Ryan goes out and Pelosi gets in on January 4, and Pelosi passes the deal through the House. But because it is a new congressional session, the Senate's approval has expired. And McConnell—desperate not to embarrass Trump more—is now holding things up in the Senate.

From Pelosi and Schumer's standpoint, the big problem is this: they reach a new deal with Trump, Fox and Friends finds some reason to slag it, Trump backs out again.

The right, rational response to this situation is for Pelosi, McCarthy, Schumer, and McConnell to strike deals and then pass them with veto-proof majorities. But McCarthy and McConnell are too scared of Trump and not concerned enough about the well-being of the country to do that.

2.5 million people aren't getting their paychecks and 800,000 are getting very little work done. That's about a 0.5%—10 billion over the past month—hit to the economy. We won't see that because of oddities in the how the public sector is folded into official statistics, but it is there. Will there be a multiplier applied to it? In a year I will have the data so that then I will be able to look back and tell you. I cannot tell you now...

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David Rezza Baqaee and Emmanuel Farhi: The Microeconomic Foundations of Aggregate Production Functions: "We provide a general methodology for analyzing...aggregate production functions by deriving their first- and second-order properties... provide non-parametric characterizations of the macro elasticities of substitution between factors and of the macro bias of technical change in terms of micro sufficient statistics. They allow us to generalize existing aggregation theorems and to derive new ones. We relate our results to the famous Cambridge-Cambridge controversy...

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M.G. Siegler: Apple’s Precarious and Pivotal 2019: The battery replacement issue suggests that many people are no longer upgrading iPhones because they’re now 'good enough' and everyone is more than happy to just pay a bit more for a better battery.... The part about 'US dollar strength-related price increases'—yes, this is Apple... acknowledging there may be a price ceiling for the iPhone.... The '$1,500 iPhone' (the most expensive variety of the iPhone XS Max) [was] to test such upper boundaries, like velociraptors testing electric fences. Consider it tested! And they’ll remember!...

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Richa Gupta and Umang Aggarwal: Is there a “Late Converger Stall” in Economic Development? Can India Escape it?: "A major driver of these good times is 'economic convergence', whereby poorer countries have grown faster than richer countries and closed the gap in standards of living. The convergence process has been broadening and accelerating for the last 20-30 years.... [But] the possibility of... a 'Late Converger Stall'...

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Noah Smith: China's Economic Growth at Risk From Reversing Reforms - Bloomberg: "There already are some signs that the country is making mistakes that will hobble economic growth.... By many measures, China is the world’s largest economy. This means a number of benefits will now flow—and indeed are already flowing—to China that used to go to the U.S. and Europe. Chief among these is agglomeration.... But... it might easily make mistakes that would prevent the country from leveraging that size for maximum economic benefit. Chief among these self-inflicted wounds would be closing the country to foreign investment, extending state control of the economy and adopting an adversarial relationship with neighboring nations. Ominously, the country seems to doing all of these now, to one extent on another...

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Stagnant Real Wages and Secular Stagnation Are Not Closely Related: DeLong FAQ

EconSpark: Derrick Miedaner asks: What role, if any, does secular stagnation play in the flat growth of wages since the recovery?": I reply: I think Ed Lambert is correct. "Secular stagnation" is probably not the best label for the worry. The worry is that financial markets have gotten themselves wedged into a situation in which frequently and for sustained periods of time it is the case that the full-employment real safe short-term Wicksellian neutral rate of interest turns out to be less than the negative of the central bank's inflation target. In a flexible-price full-employment economy, the economy deals with this and maintains full employment by having the price level drop instantaneously and discretely whenever this occurs in order to generate the extra inflation needed to get the market rate at the zero lower bound to its value needed for full employment, the real safe short-term Wicksellian neutral rate of interest. This was one of the major (but I think often overlooked) points of Krugman (1998) https://www.brookings.edu/wp-content/uploads/1998/06/1998b_bpea_krugman_dominquez_rogoff.pdf.

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