One measure of the extent of competition in an industry is the concentration ratio. what level of concentration indicates that an industry is an oligopoly? most economists believe that a four-firm concentration ratio of ▼ greater less than nothing percent indicates that an industry is an oligopoly. (enter your response as an integer.)

Which ranks these careers that employers are most likely to hire from the least to the greatest?

Match each event to its effect on the equilibrium interest rate and the amount of investment in the loanable funds market. higher interest rate, greater investment higher interest rate, less investment lower interest rate, less investment lower interest rate, greater investment immediate consumer gratification is no longer preferred by people. an efficient new source of energy effectively increases the return on owning a factory. a wave of retirees stops working and begins drawing on retirement savings.

A. calculate the payoff and profit at expiration for the february 190 calls, if you purchase the option at the stated price and at expiration the stock price is $195. b. calculate the payoff and profit at expiration for the february 195 puts, if you purchase the option at the stated price and at expiration the stock price is $195.