Sam, age 45, saved diligently for his college education by putting part of his pay into U. S. Series EE saving bonds. Sam purchased the bonds for $6,500, and this year he redeemed the bonds for $7,200. He has no other income this year. What amount must Sam include in his gross income

By 2020, automobile market analysts expect that the demand for electric autos will increase as buyers become more familiar with the technology. however, the costs of producing electric autos may increase because of higher costs for inputs (e. g., rare earth elements), or they may decrease as the manufacturers learn better assembly methods (i. e., learning by doing). what is the expected impact of these changes on the equilibrium price and quantity for electric autos?