1. Public Goods Population Growth HAS 3150

2. Air vs Arthroscopic Surgery Can’t charge for air Two dimensions of “publicness”

3. Social Costs Garbage Story

4. Risk Pooling Choice Change affects everyone

5. Milk or Bread Government regulation

6. Externalities Milk STDs Epidemics

7. Birth and Death Rates Natural rate of population increase =

8. Demographic Transition Agricultural = Industrial

9. Income Distribution Hunter-Gatherer Agricultural Industrialize

10. Income and Health It is hard to show that medical care has an independent effect on average life expectancy.

11. Value of Life Reducing risk of death Expect progress Rise in medical technology –Specialists –Clinics –Use of statistics