For which pairs of goods is the cross-price elasticity most likely to be positive?

Some economists argue that the increases in aggregate demand for output spurred by wartime spending, complemented by the strong spending in the private sector, impacted the U.S. economy by

(a) increasing production and employment. (b) increasing employment and income. (c) increasing income, thus fueling additional spending. (d) contributing to all of the above.

Which of the following is a reason why job A would pay a higher wage rate than job B?

a. job B requires more education b. job A offers greater fringe benefits c. job A offers free parking d. job A involves greater risk e. job B has a higher skill requirement