how to start up a non profit business Planning is so important for the success of the transaction that it is necessary to use a hypothetical example to further illustrate. Turning interest into creating equality - bubbles are a sign of market demand and represent a majority of people's expectations of financial returns. We should see it as an opportunity for development. But if we stop, we may continue to centralize wealth, repeat the traditional power structure and miss out on real opportunities. The investment quantity is the decreasing function of interest rate, saving is the increment function of interest rate, and the change of interest rate depends on the equilibrium point of investment quantity and saving amount. Keynes's theory of money supply and demand decided that interest rates were a monetary factor rather than an actual factor. However, smaller, yet unestablished, Banks are still keen to attract new businesses, such as the recent announcement of Atom Bank, a multi-million dollar mobile provider for investors.