When u. s. farmers in the southwest irrigate their land, salt in the ground soil leaks into the colorado river. the colorado river has become so salty that mexican farmers further down the river cannot irrigate their own land and mexican crops have been devastated. this situation constitutes a negative externality because:
a. the social cost of irrigation exceeds the social benefits.
b. u. s. farmers consider only their external costs in their decision making.
c. mexican farmers consider only their private costs in their decision making.
d. u. s. farmers consider only their private costs in their decision making.

Amarket that consists of all possible consumers regardless of their specific needs or wants is a

Profits from using currency options and futures.on july 2, the two-month futures rate of the mexican peso contained a 2 percent discount (unannualized). there was a call option on pesos with an exercise price that was equal to the spot rate. there was also a put option on pesos with an exercise price equal to the spot rate. the premium on each of these options was 3 percent of the spot rate at that time. on september 2, the option expired. go to the oanda.com website (or any site that has foreign exchange rate quotations) and determine the direct quote of the mexican peso. you exercised the option on this date if it was feasible to do so. a. what was your net profit per unit if you had purchased the call option? b. what was your net profit per unit if you had purchased the put option? c. what was your net profit per unit if you had purchased a futures contract on july 2 that had a settlement date of september 2? d. what was your net profit per unit if you sold a futures contract on july 2 that had a settlement date of september 2

Increases in output and increases in the inflation rate have been linked to