What does principle of prosperity mean?

How does consumer income affect the demand for normal goods? How many businesses are successful? Why do Keynesian economist believe that market forces do not automatically adjust for unemployment and inflation? Who came up with the saying money makes the world go round? What is Something subsistence farming did not produce? Should a VP buy from a family member and bypass bidding process? What is the definition of a dependent economic zones? Is the statement 'Society faces a short-run tradeoff between inflation and unemployment' positive or normative? Is bountiful a snonym for famine? Meaning of economic instability? Different between traditional economic and managerial economic? How much would five shillings be worth in todays money? What impact did industrialization have on the gap between the rich and the poor? How did the Federal Reserve's higher interest rates in the 1930s complicate the great depression? Problem in education in the Philippines? According to Adam Smith what happens when demand for a good increases? Is capitalism necessay for a successful democracy? What is the full form of SEZ? What are some examples of free riders and how do they impact the effectiveness of collective efforts? Which statements best explains the law of demand?