Suppose the terms of trade (market price) are one Tea exchanges for 4 Computers. Make up a specific example of a trade (i.e. India trades some amount of its production of the good it specializes in to the US and gets back an amount of the good the US specializes inrecall the terms of trade are 1T for 4C!) India and the US could make and show the new "Post-trade" allocation of tea and computers in the two countries.

g. In what way does this exercise prove the saying, "trade creates wealth"?