Some companies, such as heinz, can forecast revenues well using pure time series analysis (that is, by extrapolation of prior data, accounting for seasonal effects). other companies, such as fedex (which makes money by shipping packages), or sony (which sells consumer electronics) find that they cannot rely on pure time series analysis for reliable forecasting. they are strongly affected by recessions and need to use theory-based methods, including such explanatory variables as income in their forecasting models. why are they different from heinz?

In which of the following games is it clearly the case that the cooperative outcome of the game is good for the two players and bad for society? a. two oil companies own adjacent oil fields over a common pool of oil, and each company decides whether to drill one well or two wells.b. two airlines dominate air travel between city a and city b, and each airline decides whether to charge a "high" airfare or a "low" airfare on flights between those two cities.c. two superpowers decide whether to build new weapons or to disarm.d. in all of the above cases, the cooperative outcome of the game is good for the two players and bad for society