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  1. Growth Productivity Wealth of Nations Part one

  2. Laugher Curve We have two classes of forecasters: Those who don't know, and those who don't know they don't know. John Kenneth Galbraith

  3. General Observations about Growth • Growth increases the economy’s potential output.

  4. Growth and the Economy’s Potential • Growth is an increase in the amount of goods and services an economy produces. • Growth is an increase in potential output.

  5. Growth and the Economy’s Potential • Potential output – the highest amount of output an economy can produce from the existing production function and existing resources. • When an economy is at its potential output, it is operating on its production possibility curve.

  6. Growth and the Economy’s Potential • Long-run growth focuses on supply. • It assumes Say’s Law – supply creates its own demand.

  7. Growth and the Economy’s Potential • In the short run, economists consider potential output fixed. • They focus on how to get the economy operating at its potential if it is not.

  8. Importance of Growth for Living Standards • Growth improves living standards. • It makes more goods available to more people. • Because of compounding, long-term growth rates matter a lot.

  9. Importance of Growth for Living Standards • The Rule of 72 is used to determine how long it takes for income to double at different growth rates. • The Rule of 72 – the number of years it takes for a certain amount to double in value is equal to 72 divided by its annual rate of increase.

  10. Markets, Specialization, and Growth • Markets, specialization and the division of labor increase productivity and growth. • Specialization – the concentration of individuals on certain aspects of production • Divisionof labor – the splitting up of a task to allow for specialization of production.

  11. Economic Growth, Distribution, and Markets • Markets are often seen to be unfair because of the effect they have on the distribution of income.

  12. Economic Growth, Distribution, and Markets • Markets may not provide equality of income but they make the poor better off. • There is strong evidence that the poor benefit enormously from the growth that markets foster.

  13. Economic Growth, Distribution, and Markets • Just because the poor benefit from growth does not mean they might not be better off if income were distributed more in their favor.

  14. Per Capita Growth • Per capita output is total output divided by total population. • Per capita growth means producing more goods and services per person.

  15. Per Capita Growth • Per capita growth equals the percent change in output minus the percent change in population Per capita growth = % change in output - % change in population

  16. Per Capita Growth • In many developing nations, the population is rising faster than GDP, resulting in a lower per capita growth rate.

  17. Per Capita Growth • Some economists have argued that per capita (mean) output is not what we should be focusing on. • We should focus on median income instead.

  18. Per Capita Growth • Median income is a better measure because it takes into account how income is distributed.

  19. Per Capita Growth • If the growth in income goes mostly to a small minority of individuals, the mean will rise but the median will not. • Because statistics on median income is generally not collected, economists use per capita income.

  20. Milk (½ gallon) Beef (1 pound) 1919 Eggs (1 dozen) Bread (1 pound) Chicken (3 lb. fryer) Cost of Goods in Hours of Work Milk (½ gallon) Beef (1 pound) 2005 Eggs (1 dozen) Bread (1 pound) Chicken (3 lb. fryer) 0 50 100 150 200 Price in minutes of work