Which of the following statements best describes the Keynesian Chain? Which of the following statements best describes the Keynesian Chain? Money Supply (MS) up, interest rate up, investment up and GDP (Y) up Money Supply (MS) up, interest rate down, investment down and GDP (Y) up Money Supply (MS) up, interest rate down, investment up and GDP (Y) up Money Supply (MS) up, interest rate up, investment down and GDP (Y) down.