Before the law came into force, start-ups could only raise money from qualified investors, and everyone was eligible to become a start-up investor after the jobs bill came into force. Keynes argued that savings and investment were two interdependent variables, not two independent variables. Planning is so important for the success of the transaction that it is necessary to use a hypothetical example to further illustrate. "If there is no allow most of the European Union oriented financial services agreement, the financial sector accounts for about 7% of GDP, but about 10% of tax revenue and 14% of the exports, may be affected by the special Britain will stay there," the report said. In his theory, money supply is controlled by the central bank and is an exogenous variable with no interest rate elasticity. At this point, monetary demand depends on people's psychological "liquidity preference".