Explain the loanable fund's theory in your own words including a discussion of the demand and supply curves for loanable funds, and their shapes and reason for these shapes, and how the equilibrium interest rate is determined. Include in your explanation the parties that are the net suppliers and the parties that are the net demanders of loanable funds. Also, discuss in detail the factors that affect the supply of loanable funds and the factors that affect the demand for loanable funds and their net effects.