Expert systems are expensive and time-consuming to
a. because their rule base is so complex.
b. because they rely on equipment that becomes outdated.
c. because their rules must be reprogrammed every time there is a change in the environment, which in turn may change the applicable rules.
d. because only the person who created the system knows exactly how it works, and may not be available when changes are needed.

The rybczynski theorem describes: (a) how commodity price changes influence real factor rewards (b) how commodity price changes influence relative factor rewards. (c) how changes in factor endowments cause changes in commodity outputs. (d) how trade leads to factor price equalization.

T-comm makes a variety of products. it is organized in two divisions, north and south. the managers for each division are paid, in part, based on the financial performance of their divisions. the south division normally sells to outside customers but, on occasion, also sells to the north division. when it does, corporate policy states that the price must be cost plus 20 percent to ensure a "fair" return to the selling division. south received an order from north for 300 units. south's planned output for the year had been 1,200 units before north's order. south's capacity is 1,500 units per year. the costs for producing those 1,200 units follow

Cherokee inc. is a merchandiser that provided the following information: amount number of units sold 20,000 selling price per unit $ 30 variable selling expense per unit $ 4 variable administrative expense per unit $ 2 total fixed selling expense $ 40,000 total fixed administrative expense $ 30,000 beginning merchandise inventory $ 24,000 ending merchandise inventory $ 44,000 merchandise purchases $ 180,000 required: 1. prepare a traditional income statement. 2. prepare a contribution format income statement.