ECON 1002, MICROECONOMICS EXAM LATEST SPRING 2020 COMPLETE A+ SOLUTIONS

Suppose that as the price of Y falls from $2.00 to $1.90, the quantity of Y demanded increases from 110 to 118. Then the absolute value of the price elasticity (using the midpoint formula) is - correct answer 1.37 An antidrug policy that reduces the supply of heroin might - correct answer increase street crime because the addict's demand for heroin is highly inelastic. How is elasticity determined on a graph - correct answer The steeper the slope the more elastic, the more gradient the slope the more inelastic. If you compute the price elasticity of demand using a quantity of tickets from 1 to 8 and using a quantity of tickets from 1,000 to 8,000, the value of the price elasticity of demand is - correct answer the same because the percentage change in quantity demanded will remain the same. Suppose that the total revenue received by a company selling basketballs is $960 when the price is set at $15 per basketball and $960 when the price is set at $10 per basketball. Without using the midpoint formula, identify whether demand is elastic, inelastic, or unit-elastic over this price range. - correct answer Demands is unit-elastic How would the following changes affect total revenue: price falls and demand is inelastic - correct answer Decrease How would the following changes affect total revenue: Price rises and demand is elastic - correct answer Decrease How would the following changes affect total revenue: Price rises and demand is inelastic - correct answer Increase How would the following changes affect total revenue: Price falls and demand is elastic - correct answer Increase How would the following changes affect total revenue: Price falls and demand is of unit-elasticitiy - correct answer Remain unchanged What does it mean when cross elasticity is positive - correct answer It means that goods are substitutes What does it mean when cross elasticity is negative - correct answer It means that goods are complements Suppose the price of movie tickets changes. The price change leads to a 30 percent increase in the quantity demanded of movie tickets. This causes the total revenue from movie tickets to increase by 10 percent. Is the demand for movie tickets elastic or inelastic? - correct answer Elastic What are the major determinants of price elasticity of demand? - correct answer Substitutability, proportion of income, luxuries versus necessities, and time If the price elasticity of demand for a product is 2.5, then a price cut from $2.00 to $1.80 will - correct answer Increase quantity demanded by 25 percent Suppose Aiyanna's Pizzeria currently faces a linear demand curve and is charging a very high price per pizza and doing very little business. Aiyanna now decides to lower pizza prices by 5 percent per week for an indefinite period of time. We can expect that each successive week, - correct answer The demand will become less price elastic Gigantic State University raises tuition for the purpose of increasing its revenue so that more faculty can be hired. GSU is assuming that the demand for education at GSU is - correct answer relatively inelastic An increase in demand will increase equilibrium price to a greater extent - correct answer The less elastic the supply curve If the income elasticity of demand for store brand macaroni and cheese is -3.00, this means that - correct answer Store brand mac and cheese is an inferior good Compared to coffee, we would expect the cross elasticity of demand for - correct answer Tea to be positive, but creamer to be negative` Assume that a 4 percent increase in income across the economy produces an 8 percent increase in the quantity demanded of good X. The coefficient of income elasticity of demand is - correct answer positive, and therefore x is a normal good. Normal profit is - correct answer the return to the entrepreneur when economic profits are zero. The law of diminishing returns indicates that - correct answer As extra units of a variable resource are added to a fixed resource, marginal product will decline beyond some point The law of diminishing marginal returns results in - correct answer a total product curve that eventually increases at a decreasing rate Mrs. Simpson buys loaves of bread and quarts of milk each week at prices of $1 and 80 cents, respectively. At present she is buying these products in amounts such that the marginal utilities from the last units purchased of the two products are 80 and 70 utils, respectively. - correct answer Mrs. Simpson should buy more milk and less bread, Mrs. Simpson is not buying the utility-maximizing combination of bread and milk because the marginal utility per cent spent on each good is not equal. The marginal utility per cent of bread is 0.80 (= 80 utils/100 cents); the utility per cent of milk is 0.875 (= 70 utils/80 cents). Frank spends $75 on 10 magazines and 25 newspapers. The magazines cost $5 each and the newspapers cost $2.50 each. Suppose that his MU from the final magazine is 10 utils while his MU from the final newspaper is also 10 utils. According to the utility-maximizing rule, Frank should: - correct answer Reallocate spending from magazines to new papers Demand curves slope downward because, other things held equal, - correct answer a decrease in a product's price raises MU per dollar and makes consumers wish to purchase more units Jermaine spends his money on cucumbers and lettuce. If the price of cucumbers falls, the MU per dollar of cucumbers will _______ and Jermaine will _______ cucumbers for lettuce. - correct answer rise; substitute Explicit costs are payments the firm makes for - correct answer inputs such as wages and salaries to its employees, whereas implicit costs are nonexpenditure costs that occur through the use of self-owned resources such as forgone income. The explicit costs of going to college include - correct answer tuition costs and the cost of books, where implicit costs include forgone income. What are explicit costs? - correct answer Costs directly related to costs of production What are implicit costs? - correct answer Costs that do not require money spending. (Time, Opportunity Cost)