问题如下:
3. Using the financial results for 2012 shown in Exhibit 2, it would be most appropriate for Larsted to conclude that economies of scale for firms in the home improvements retail sector:
选项: do not exist.
exist and are realized in cost of goods sold only.
C.exist and are realized in both cost of goods sold and SG&A.
解释:
3.B Retail, Inc., operating margin 2012
Midsize, Inc., operating margin 2012 598/8,488=7.0%
Retail,Inc.,is a bigger firm and has a larger operating margin, suggesting that economies of scale are more likely to exist.
Retailer COGS as a %of Revenue 2012
Midsize COGS as a %of Revenue 2012
Retailer SG&A as a %of Revenue 2012
Midsize SG&A as a%of Revenue 2012
Analysis of the expense ratios shows that the economies of scale are realized in COGS rather than in SG&A.
答案这里好像显示的有问题 能具体写一下是怎么得出B选项吗 还有为什么C选项不对呢