Futures Prices: Known Income, Cost of Carry, Convenience Yield. How the prices of forward and futures contracts are affected when the underlying asset pays a known income, has a cost of carry, such as storage costs, or offers any convenience yield, which is the additional benefit of holding the asset rather than holding a forward or futures Understand why stock prices are different in the spot & futures market. Learn the cost of carry & expectancy models by visiting our Knowledge Bank section! What is the Pricing Structure of Futures Contract | Kotak Securities® Although they recognized that current interest rate, wealth owned by the individuals, expectations of future prices and future rate of interest determine the demand for money, they however believed that changes in these factors remain constant or they are proportional to changes in individuals’ income.