Two people are engaged in a joint project. If each person i puts in the effort xi, a nonnegative number equal to at most 1, which costs her c(xi), the outcome of the project is worth f(x1,x2). The worth of the project is split equally between the two people, regardless of their effort levels. Formulate this situation as a strategic game. Find the Nash equilibria of the game when (a) f(x1,x2) = 3x1x2 and c(xi) = x2i for i = 1,2, and (b) f(x1,x2) = 4x1x2 and c(xi) = xi for i = 1,2. In each case, is there a pair of effort levels that yields higher payoffs for both players than do the Nash equilibrium effort levels?

Alandowner and his neighbor purchased adjoining undeveloped lots. after both built homes on their respective lots, the landowner suggested to the neighbor that a common driveway be built where the two lots joined. the neighbor agreed. the landowner and the neighbor split the cost of constructing the driveway and entered into a written agreement to equally share the costs of its upkeep and maintenance. the agreement was recorded in the county recorder's office. two years later, the neighbor built a new driveway located entirely on his lot. the common driveway, which the landowner continued to use but which the neighbor no longer used, began to deteriorate. the landowner asked the neighbor for money to maintain the common driveway, but the neighbor refused to contribute. three years later, the neighbor conveyed his lot to a friend. the friend entered into possession and used only the driveway built by the neighbor. by this time, the common driveway had deteriorated badly and contained numerous potholes. the landowner asked the friend to pay half of what it would take to repair the common driveway. the friend refused. the landowner repaired the driveway and sued the friend for 50% of the cost of repairs. will the landowner prevail?

Which of the following situations is most likely to change a buyer's market into a seller's market? a. a natural disaster that drives away a lot of the population. b. the price of building materials suddenly going up. c. the government buys up a lot of houses to build a new freeway. d. a factory laying off a lot of workers in the area.

Oimpermeable peaeiremblm: a garment you put on when it's raining. eddepnieent: a sales person. rrgteeaa: to negotiate the price of an article. jcaa: a box where the sales person keeps the money of his/her sales. rbatoa: something inexpensive. zalu: the color of the sky. gfolasdaes (3 words): an object that protects your eyes from the sun.