Ten Key Principles of Economics

1. Everything has a cost. There is no free lunch. There is always a trade-off.
2. Cost is what you give up to get something. In particular, opportunity cost is cost of the tradeoff.
3. One More. Rational people make decisions on the basis of the cost of one more unit (of consumption, of investment, of labor hour, etc.).
4. Incentives work. People respond to incentives.
5. Open for trade. Trade can make all parties better off.
6. Markets Rock! Usually, markets are the best way to allocate scarce resources between producers and consumers.
7. Intervention in free markets is sometimes needed. (But watch out for the law of unintended effects!)
8. Concentrate on productivity. A country’s standard of living depends on how productive its economy is.
9. Sloshing in money leads to higher prices. Inflation is caused by excessive money supply.!!
10. Caution: In the short run, falling prices may lead to unemployment, and rising employment may lead to inflation.



Friday, July 2, 2010

News Flash: Economists Agree

The recent debate over the stimulus bill has lead some observers to think that economists are hopelessly divided on issues of public policy. That is true regarding business cycle theory and, specifically, the virtues or defects of Keynesian economics. But it is not true more broadly.

Here is the list, together with the percentage of economists who agree:

1. A ceiling on rents reduces the quantity and quality of housing available. (93%)

2. Tariffs and import quotas usually reduce general economic welfare. (93%)

3. Flexible and floating exchange rates offer an effective international monetary arrangement. (90%)

4. Fiscal policy (e.g., tax cut and/or government expenditure increase) has a significant stimulative impact on a less than fully employed economy. (90%)

5. The United States should not restrict employers from outsourcing work to foreign countries. (90%)

6. The United States should eliminate agricultural subsidies. (85%)

7. Local and state governments should eliminate subsidies to professional sports franchises. (85%)

8. If the federal budget is to be balanced, it should be done over the business cycle rather than yearly. (85%)

9. The gap between Social Security funds and expenditures will become unsustainably large within the next fifty years if current policies remain unchanged. (85%)

10. Cash payments increase the welfare of recipients to a greater degree than do transfers-in-kind of equal cash value. (84%)

11. A large federal budget deficit has an adverse effect on the economy. (83%)

12. A minimum wage increases unemployment among young and unskilled workers. (79%)

13. The government should restructure the welfare system along the lines of a “negative income tax.” (79%)

14. Effluent taxes and marketable pollution permits represent a better approach to pollution control than imposition of pollution ceilings. (78%)

If we could get the American public to endorse all these propositions, I am sure their leaders would quickly follow, and public policy would be much improved. That is why economics education is so important.

Note that the proposition about fiscal policy (#4) does not distinguish between taxes and spending as the best tool for purposes of macro stabilization. Maybe that question should be added in a future poll. I doubt, however, that the answer would make it onto this list of widely agreed upon propositions.

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