A fractional reserve banking system is a system whereby A. banks keep only a fraction of their deposits on hand as reserves. B. banks keep at least 100 percent of their deposits on hand as reserves. C. a central bank tells all banks what fraction of the population they can serve. D. banks specialize so that one type of bank handles one kind of deposit and another type of bank handles another type of deposit

Total marketing effort is a term used to describe the critical decision factors that affect demand: price, advertising, distribution, and product quality. define the variable x to represent total marketing effort. a typical model that is used to predict demand as a function of total marketing effort is based on the power function: d = axb suppose that a is a positive number. different model forms result from varying the constant b. sketch the graphs of this model for b = 0, b = 1, 0< b< 1, b< 0, and b> 1. (we encourage you to use excel to do this.) what does each model tell you about the relationship between demand and marketing effort? what assumptions are implied? are they reasonable? how would you go about selecting the appropriate model?