Corrective taxes are typically advocated to correct for the effects ofA. positive externalities. B. patents. C. negative externalities. D. All of the above are correct.

The correct answer is letter "C": negative externalities.

Explanation:

Corrective taxes are levies imposed by the central government to companies generating negative externalities. The levies are intended to reduce the production of the firms causing the externality, thus, decreasing their impact. Another form of downsizing externalities is through command-and-control regulations that impose production standards and regulate firms' processes.

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.