The source of the supply of loanable funds is consumption, and the source of the demand for loanable funds is investment. saying, and the source of the demand for loanable funds is investment. the interest rate, and the source of the demand for loanable funds is saving: investment, and the source of the demand for loanable funds is saving The source of the supply of loanable funds is consumption, and the source of the demand for loanable funds is investment. saying, and the source of the demand for loanable funds is investment. the interest rate, and the source of the demand for loanable funds is saving: investment, and the source of the demand for loanable funds is saving
