Assume the world market for oil is competitive and that the marginal cost of producing (extracting and bringing to market) another barrel of oil is $81.80 and the marginal benefit is $80.00. if one more barrel of oil is produced and consumed, how will economic surplus change? economic surplus will a. increase by $161.80. b. decrease by $81.80. c. decrease by $1.80. d. not change. e. increase by $1.80

Jaguar has full manufacturing costs of their s-type sedan of £22,803. they sell the s-type in the uk with a 20% margin for a price of £27,363. today these cars are available in the us for $55,000 which is the uk price multiplied by the current exchange rate of $2.01/£. jaguar has committed to keeping the us price at $55,000 for the next six months. if the uk pound appreciates against the usd to an exchange rate of $2.15/£, and jaguar has not hedged against currency changes, what is the amount the company will receive in pounds at the new exchange rate?