"In practice, the lags . . . make monetary and fiscal policy difficult to apply. The lags and the general complexity of the national economy also make it difficult to sort out how different policies have affected the economy in the past. Economists have debated these matters for many years." This statement explains which of the following?
a. why most economists today are monetaristsb. why the national debt has grown so alarminglyc. why the business cycle existsd. why there is often disagreement over monetary and other economic policies

Why was frederick douglass encouraged by the dred scott decision?

In the kingdom of saudi arabia the government controls every aspect of oil production which makes up the majority of the country's economy. while other businesses are owned by individuals, the biggest segment of saudi arabia's economy is oil production. saudi arabia's economy would best be described as a) entirely market. b) almost entirely command. c) a mixture between just market and traditional. d) a mixed economy with large amounts of command.

Griffin correctly concludes that the coordinate pair for the russian federation is an influential point, because removing the russian federation from the relationship will significantly change the trend of the regression line. is an influential point, because removing the russian federation from the relationship will not significantly affect the estimated coefficient of determination of the regression line. is not an influential point, because the russian federation does not have the highest cvdir of all 1111 nations in the scatterplot. is an influential point, because removing the russian federation from the relationship will not significantly affect the estimated slope of the regression line. is not an influential point, because the russian federation has a positive residual in the least-squares linear regression.