An economist would be more likely to argue against reducing inflation if she thought that a. the central bank lacked credibility and if bonds were usually not indexed for inflation. b. the central bank lacked credibility and if bonds were usually indexed for inflation. c. the central bank had credibility and if bonds were usually not indexed for inflation. d. the central bank had credibility and if bonds were usually indexed for inflation.

answer about 4-5 percent of the labor force is unemployed;

answer: marginal utility of the fourth brownie is 0.

explanation: marginal utility is the addtional utility gained from the consumption of one more unit of a good. it is given by,

so, marginal utility at the 4th unit will be given by

since, the values are not given here, you can simply find marginal utility at fourth unit by subtracting total utility at 3rd unit from total utility at 4th unit.