1. Rhetoric of Economic Thought
Keynes, and Liberal
macroeconomics

2. Economic Development Theories
Mercantilism (16th – late 18th century)
Classical Economics ( s)
Neo-classical Economics (1870s-1930s)
Keynesian Economics (1930s-1970s)
Development Economics (1940s-1990s)
Neoliberalism (1990s-2008)
Timeline does not necessarily imply loss of significance of a particular theory

3. Economic analysis – key contributors, 20th century
2000
1900
1950
Alfred Marshall (1842 – 1924)
John Maynard Keynes (1883 – 1946)
Keynes
Thorstein Veblen (1857 – 1929)
Joseph Schumpeter (1883 – 1950)
Friedrich A. von Hayek (1899 – 1992)
Hayek
Ronald Coase (1910 – )
Milton Friedman (1912 – 2008)
Samuelson
Paul Samuelson (1915 – )
Kenneth Arrow (1921 – )
Friedman
Gary Becker (1930 – )
Robert Lucas (1937 – )
Lucas

4. Schools of thought in mid-20th century macroeconomics
Keynesianism is the view that economies are inherently unstable, that they may in fact settle at less-than full employment equilibrium, that Aggregate Demand is the primary determinant of output and employment, and that authorities can intervene in an economy to stabilize it. Keynesians generally express a preference for fiscal policy as a stabilizing tool.
Monetarism is the view that economies are inherently stable, that the quantity of money has a major influence on economic activity and the price level, and that the objectives of monetary policy are best achieved by targeting the rate of growth of the money supply. Monetarists generally express a preference for monetary policy as a stabilizing tool relative to prices only, being generally skeptical of attempts to manage output.
Keynes
Samuelson
Friedman
Greenspan

5. Democracy & Capitalism = Compromise
Marx believed that compromise between workers and capitalist was impossible
Keyenesianism (1930s) provided ideological and political foundations for compromise
State reconcile private ownership with democratic management
Sweden first country to promote employment policies in 1932 but not income distribution

6. Democracy & Capitalism
For Keynes the engine of the economy is consumption
Thus his solution to economic recession = increase demand (consumption)
How?
Raising wages
Transfers to the poor by ad hoc programs
Government spending
Or reducing taxes

7. Keynes’ Policy
Full employment and equality (creation of welfare programs)
Over time capitalists and socialists struck different compromises. Capitalists understood that Socialists had the votes to rule and accepted a certain degree of regulation and employment and welfare policies as the lesser of two evils (a communist revolution)

8. Liberal View Liberals opposed Keynes’ ideas because:
Higher wages and more social services raised the cost of production
The welfare of the poor was not the responsibility of the government (by manipulating economic policy) but of private charities

9. Classical economics Based on critique of Mercantilism (Adam Smith)
General belief on economic development through free market (i.e. trade without barriers)
Adam Smith’s Wealth of Nations (1776) marks the beginning
Self-interest as economic drive
Limited government intervention—free trade; self-regulating
markets [contrast: mercantile protectionism]
Market prices limited by competition
Invisible hand of self-regulating markets transform self-interest
into public virtue
Division of labor (i.e. specialization) enhances production [distinctively industrial orientation]
Division of labor limited by the extent of market

10. Theories of Public Debt (Less-than-full employment)
Fiscal policy and government finance
Theories of Public Debt
Keynesian
(Less-than-full employment)
Classical
(Full employment)
If an economy is in a state of “under production”, expansion of debt could conceivably make both current and future generations better off.
Views countercyclical public debt policy as an optimal response to the business cycle – “appropriately timed” deficits can benefit all.
Neoclassical
(Non-Ricardian)
Ricardian
Debt-financed deficits make households feel wealthier in the short run, thereby raising current levels of output.
Public debt competes with private debt for available funds, thus driving up interest rates and changing the composition of output (lowering investment) with deleterious effects for long-term growth.
Debt-financed deficits imply higher future taxes, and thereby constitute a burden on future generations.
Debt-financed deficits imply higher future taxes with a present value equal to the value of the debt.
Rational agents (behaving according to the “Permanent Income / Life Cycle model of consumption) will adjust current saving plans in anticipation of the future taxes.
Debt-financed deficits will not change households perception of wealth, and therefore will not precipitate any change in current levels of output.

11. Schools of thought in late-20th century macroeconomics
New Keynesianism is the view that market failures and microeconomic coordination failures give rise to macroeconomic instabilities that frequently cause economies to settle at less-than full employment equilibrium, that both aggregate demand and aggregate supply are important determinants of output and employment, and that authorities can intervene with fiscal and monetary policy tools to stabilize an economy
New Classicalism is the view that economies are inherently stable, that fiscal and monetary interventions tend to be destabilizing, and that cyclical fluctuations are caused by either real shocks to the economy or unanticipated policy shocks. New classicals generally express a preference for microeconomic policies aimed at fostering aggregate supply, and a predictable monetary policy to maintain price stability.
Bernanke
Mankiw
Prescott
Lucas

12. We’re all Keynesians now.
Keynes or Keynesianism?
The Employment Act of 1946:
The Congress hereby declares that it is the continuing policy and responsibility of the Federal Government to use all practicable means consistent with its needs and obligations and other essential considerations of national policy … to promote maximum employment, production, and purchasing power.
What is at stake in our economic decisions today is not some grand warfare of rival ideologies which will sweep the country with passion, but the practical management of a modern economy. What we need is not labels and cliches but more basic discussion of the sophisticated and technical questions involved in keeping a great economic machinery moving ahead.
John F. Kennedy, 1962
We’re all Keynesians now.
Richard Nixon, 1971

13. The Keynesian “revolution”
Beyond all this stretched the ‘Keynesian Revolution’ – the logic and practice of managing economies so as to maintain full employment and avoid depressions like that of 1929 – 33. In the form Keynes left it, his Revolution was never wholly accepted; and the debate about its value and relevance, and its author’s place in the pantheon of thought and statesmanship, continues.
Robert Skidelsky, John Maynard Keynes, Volume III, Fighting for Freedom, 1937 – 1946 (2000)
Now, after more than three decades in the wilderness, Keynesian-style fiscal policy seems to be staging a comeback.
“A stimulating notion,” The Economist, February 16, 2008.

14. Our problem is to work out a social organization
Hayek and Keynes on free markets and social justice
Our problem is to work out a social organization
which shall be as efficient as possible without offending our notions of a satisfactory way of life. 
John Maynard Keynes
1883 – 1946
The End of Laissez-Faire (1926)
We must face the fact that the preservation of
individual freedom is incompatible with a full
satisfaction of our views of distributive justice
Individualism, True and False (1945)
Friedrich Hayek
1889 – 1992