The government of a country must make a decision between spending money on a hospital or spending the amount on border security. What kind of decision is this?

In New York City, Mayor Michael Bloomberg has recently recommend that the city, with the help of private donors, make cash payments to poor and underprivileged parents who can certify that their children are attending school on a regular basis

The payments would start after third grade and go through high school, rising each year as dropout rates get higher and a child's forgone earning potential is higher. What economic concept does this policy represent? A) public goods B) technological progress C) externalities D) the "invisible hand" E) incentives

If the size of the underground economy is large,

A) government agencies have difficulty measuring nominal and real GDP. B) it is relatively easy to gather productivity data on many businesses. C) measuring real GDP is relatively easy, but measuring nominal GDP is difficult. D) measuring nominal GDP is relatively easy, but measuring real GDP is difficult.