Define the concept of economic models

need help with macroeconomic question  23. A Malthusian and a modern economist walk into a bar and converse as follows: MALTHUSIAN: I bet you $1,000 that I can make the average patron in this bar wealthier with a simple trick.MODERN ECONOMIST: I agree to your bet, and bet you $2,000 that I can do a better job.Thus, the Malthusian proceeds to murder half of the patrons, cleanly disposing of their bodies. The modern economist, on the other hand, replaces the bartender with a robot. How can we explain this ridiculous situation?(A) The Malthusian believes that killing people raises per-capita wealth, while the economist believes that technological improvements raise per-capita wealth.(B) The Malthusian believes that the agricultural commodities used in beer are scarce, and should be preserved; the modern economist believes that technological im- provements raise per-capita wealth.(C) There is no underlying logic to their actions.(D) The Malthusian and modern economists are both soyjacks…

Suppose you and your friend go out for dinner. Your friend orders a cheeseburger and fries. When your food first arrives, you ask your friend if you can have one of his fries. He looks at you like you are crazy and says, "No!" Then a few minutes later, after you both have started eating, you ask again, and your friend reluctantly says, "Sure. Go ahead."   An economist's explanation for your friend's change of heart is most likely to be that:     Your friend's total utility declines as he eats more fries, so he's more likely to share with you after he's eaten a few. Your friend's marginal utility from eating additional fries declines as he eats more of them, so he's more likely to share with you after he's eaten a few. Your friend's total utility increases as he eats more fries, so he's more likely to share with you after he's eaten a few. Your friend's marginal utility from eating additional fries increases as he eats more of them, so he's more likely to share with you…

Analyze whether each of the following is primarily a microeconomic or a macroeconomic issue:   a) Setting the price for a cup of coffee.   b) Measuring the impact of tax policies on total household spending in the economy