1.what two important functions are performed by the price system? 2.explain how the price system eliminates a shortage 3.define GDP in broad terms. 4.define what is meant by capital and discuss the various types of capital. 5.what are two types of macroeconomic policy channels that are available to the government and describe how they work? 6.define what economists mean by the term interest rate. hlp me this, answer dont too long, need short answer thks