Structural unemployment is caused bya. short-term changes in the economy. b. temporary layoffs in industries such as construction. c. hifts in the economy that make certain job skills obsolete. d. the impact of the business cycle on job opportunities.2. which of the following statements is true? a. according to supply-side fiscal policy, lower tax rates would shift the aggregate demand curve to the right, expanding the economy and creating some inflation. b. to combat inflation, keynesians recommend lower taxes and greater government spending. c. the presence of the automatic stabilizers tends to destabilize the economy. d. above the optimal tax rate, a reduction in tax rates along the downward-sloping portion of the laffer curve would increase tax revenues.

Areal estate agent is considering changing her cell phone plan. there are three plans to choose from, all of which involve a monthly service charge of $20. plan a has a cost of $.42 a minute for daytime calls and $.17 a minute for evening calls. plan b has a charge of $.52 a minute for daytime calls and $.15 a minute for evening calls. plan c has a flat rate of $80 with 275 minutes of calls allowed per month and a charge of $.38 per minute beyond that, day or evening.a. determine the total charge under each plan for this case: 150 minutes of day calls and 70 minutes of evening calls in a month. (do not round intermediate calculations. round your answer to 2 decimal places. omit the "$" sign in your response.)c. if the agent will use the service for daytime calls, over what range of call minutes will each plan be optimal? (round each answer to the nearest whole number.include the indifference point itself in each answer.)d. suppose that the agent expects both daytime and evening calls. at what point (i.e., percentage of total call minutes used for daytime calls) would she be indifferent between plans a and b?