john maynard keynes created the aggregate expenditures model based primarily on what historical event?

James sebenius, in his harvard business review article: six habits of merely effective negotiators, identifies six mistakes that negotiators make that keep them from solving the right problem. identify which mistake is being described. striving for a “win-win” agreement results in differences being overlooked that may result in joint gains.

Aproperty title search firm is contemplating using online software to increase its search productivity. currently an average of 40 minutes is needed to do a title search. the researcher cost is $2 per minute. clients are charged a fee of $400. company a's software would reduce the average search time by 10 minutes, at a cost of $3.50 per search. company b's software would reduce the average search time by 12 minutes at a cost of $3.60 per search. which option would have the higher productivity in terms of revenue per dollar of input?

Nba all-star baron davis and his school friend, cash warren, premiered their first movie "made in america" at the sundance festival in january 2008. the movie, based on gang activity in south central los angeles, received good reviews.    source: the new york times, february 24, 2008         draw baron davis's ppf. label it ppfdavis. draw your own ppf. label it ppfmine.