What two economic problems does Keynesian economics seek to solve?

Which discipline deals with the production consumption and distribution of goods and services? How much is a 1950 d wheat penny worth? What is deadweight loss and how does it contribute to inefficiency in a market? When the UK uses pounds for money how many US dollars is that? What are the economic importance of catalyst in the industry? What is bidding for slaves called? Factoring of debts? How is communism considered both an economic system and a form of government? How much is us dollars 177 in pounds? What is the land mass of the European union? What Optimum RPM is best for fuel economy? What is the price of cotton shirts in January 2009? What the difference between Long term and short term business plan? How many cents are in a pound? Rational comprehensive theory of decision making? What is the purchasing power of 1 dollar 1895? What does opportunity favorable time mean? What is the income approach compared with the expenditure approach to calculating GDP? Some of the money that people deposit into a bank eventually becomes an injection into the economy when the bank charges interest makes loans receives additional deposits? Is profit making the primary goal of any business enterprise and why?