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.



Monday, June 28, 2010

Leno And Incentives


1. Comedian Jay Leno takes his show to Michigan to help "not just the autoworkers -- anybody out of work in Detroit."

2. He gives away tickets for free.

3. Someone tries to sell his ticket on ebay.

4. Mr Leno objects.

So I wonder: If a person down on his luck prefers the cash to the opportunity to watch Leno live, why would Leno object? Is it altruism that is really motivating Leno here? Is he really sure that the unemployed person in Detroit would be better off with an evening of laughs than $800 in his pocket? Or does Leno want to play to a live audience of unemployed workers so he will seem altruistic to his television audience?

Absent externalities, markets improve the allocation of resources. Both the buyer and the seller of the ticket must be better off: otherwise they would not engage in the transaction. The only significant negative externality that I can see here falls on Mr Leno himself. In other words, Leno's objection to the ebay sale is an understandable and fundamentally self-interested act in that the sale impedes his abilty to appear selfless.

Did he play Detroit to lift the spirits of the unemployed or to elevate his own image?
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