Consider two cars manufactured by Chevrolet in 2007. During 2007, Chevrolet sells one of the two cars to Sean for $24,000. Later in the same year, Sean sells the car to Kati for $19,000. The second automobile, with a market value of $30,000, is unsold at the end of 2007 and it remains in Chevrolet's inventory. The transactions just described contribute how much to GDP for 2007. Required:
How much does this transaction contribute to GDP for 2007?

David consumes two things: gasoline (g) and bread (b). david's utility function is u(g, b) = 10g^0.25 b^0.75. use the lagrange technique to solve for david's optimal choices of gasoline and bread as a function of the price of gasoline, p_g, the price of bread, p_b, and his income m. with recent decrease in the price of gasoline (maybe due to external shock such as shale gas production) does david increase his consumption of gasoline? for david, how does partial differential g/partial differential p_g depend on his income m? that is, how does david's change in gasoline consumption due to an increase in the price of gasoline depend on his income level? to answer these questions, find the cross-partial derivative, |partial differential^2 g/partial differential m partial differential p_g.