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Nominal gross domestic producta. is a measure of the overall level of pricesb. measures the value of final goods and services produced within the borders of a given country during a given time period using current pricesc. measures the value of final goods and services produced within the borders of a given country during a given time period corrected for changing pricesd. only changes when the level of output changes

Refer to the payoff matrix. suppose that speedy bike and power bike are the only two bicycle manufacturing firms serving the market. both can choose large or small advertising budgets. is there a nash equilibrium solution to this game?

When cell phones were first entering the market, they were relatively large and reception was undependable. all cell phones were essentially the same. but as the technology developed, many competitors entered, introducing features unique to their phones. today, cell phones are only a small fraction of the size and weight of their predecessors. consumers can buy cell phones with color screens, cameras, internet access, daily planners, or voice activation (and any combination of these features). the history of the cell phone demonstrates what marketing trend?