Why does the government issue patents? The government issues patents A. to prevent firms from keeping secret how a product is made. B. to ensure that new products are safe and effective for consumers. C. to encourage firms to spend money on the research and development necessary to create new products. D. to encourage competition among firms in markets with barriers to entry. E. to limit excessive economic profits in the short run before new firms have had time to enter profitable markets. How long do patents last? A patent is the exclusive right to a product for a period of nothing years from the date the patent is filed with the government. (Enter your response as an integer.)

Haley photocopying purchases a paper from an out-of-state vendor. average weekly demand for paper is 150 cartons per week for which haley pays $15 per carton. in bound shipments from the vendor average 1000 cartoons with an average lead time of 3 weeks. haley operates 52 weeks per year; it carries a 4-week supply of inventory as safety stock and no anticipation inventory. the vendor has recently announced that they will be building a faculty near haley photocopying that will reduce lead time to one week. further, they will be able to reduce shipments to 200 cartons. haley believes that they will be able to reduce safety stock to a 1-week supply. what impact will these changes make to haley’s average inventory level and its average aggregated inventory value?

Weekly sales at nancy's restaurant total $ 84,000. labor required is 420 hours at a cost of $21,000. raw materials used amount to $40,000. what is the partial measure of productivity for labor hours?

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