In considering the decision to adopt a dog, indicate which of the following is an example of a private cost, a private benefit, an external cost, and an external benefit that may result from the decision: The food for the dog is a private cost . The dog discouraging intruders and trespassers from the neighborhood is an external benefit . The enjoyment from a new companion is a private benefit . Barking disturbing the neighbors' sleep is an external cost .

a manufacturer of printed circuit boards uses exponential smoothing with trend to forecast monthly demand of its product. at the end of december, the company wishes to forecast sales for january. the estimate of trend through november has been 200 additional boards sold per month. average sales have been around 1000 units per month. the demand for december was 1100 units. the company uses α = 0.20 and β = 0.10. make a forecast including trend for the month of january.

answer; monopolistic competition;

answer(d) the growth of consumption is likely to remain sluggish even as the economy begins to recover.;