Suppose that two countries, britain and the u. s. produce just one good - beef. suppose that the price of beef in the u. s. is $2.80 per pound, and in britain it is £3.70 per pound. according to ppp theory, what should the $/£ spot exchange rate be? suppose the price of beef is expected to rise to $3.10 in the u. s. and to £4.65 in britain. what should be the one year forward $/£ exchange rate?