Final answer:
Inside money is physical currency and outside money is reserves. The Federal Reserve controls inside money through open market operations. This regulatory position can create costs for depository institutions.
Step-by-step explanation:
Inside money refers to physical currency, while outside money refers to reserves held by depository institutions. The Federal Reserve controls the amount of inside money through open market operations, which involve buying or selling government bonds. By buying bonds, the Federal Reserve increases the amount of inside money in circulation, while selling bonds reduces it. This regulatory position can create a cost for depository institutions as it affects their ability to lend and their profit margins.