Please assist with the following problem.
How does the existence of money reduce the costs of making transactions, relative to a society based entirely on barter? English is becoming the usual language for international transactions, even if the language of neither country is English. How does this reduce the cost of transacting?
There are two goods in the economy, anchovies (a fish) and bananas (a farm product). Draw the economy's production possibilities before and after natural disaster that lowers the banana harvest but does not affect anchovies.