If disposable income is $900 billion when the average propensity to consume is 0.9, it can be concluded that:

The invention of new mining methods will affect price through the supply side

a. True b. False Indicate whether the statement is true or false

How do high marginal tax rates affect the economic prosperity of a nation?

a. They reduce the incentive of individuals to earn reported income. b. They encourage the nation's most productive citizens to emigrate to countries where taxes are lower. c. They discourage foreigners from investing in the country. d. All of the above are correct.