Money expended with the object of profit. The goal of an insurance company is to invest in assets with a rate of return greater than that to be paid out as benefits under its policies. Traditionally, life insurance companies have invested in long-term financial instruments such as mortgages. Today, under current assumption life insurance policies, investments are in short-term financial instruments. Property and casualty insurance companies, because of the nature of their policies, favor short-term financial instruments as investments.