登录之后可查看解析

Safety stock is a protection against stockouts which could cause lost sales. Having safety stock cannot protect a company against the risk that new competition may open in the company's market area.
Safety stock is a protection against stockouts which could cause lost sales. If customers cannot find the merchandise they want, they will go to the competition. Thus having safety stock can protect a company against the risk of customers not being able to find the merchandise they want and going to the competition.
Safety stock is a protection against stockouts which could cause lost sales. A stockout could be caused by shipments of merchandise from the manufacturer being delayed. So having safety stock can protect a company against the risk of shipments of merchandise from the manufacturer being delayed.
Safety stock is a protection against stockouts which could cause lost sales. A stockout could be caused by a large variance in the distribution of daily sales, i.e., heavy sales of one product and virtually no sales of other products. So having safety stock can protect a company against the distribution of daily sales will have a large variance, due to holidays, weather, advertising, and weekly shopping habits.