Economies of scale involve decreasing as output rises.
profits.
average cost.
revenue

the best description of postwar writers might be progressive.

following the war, writers showed a tendency to work on artistic or social matters rather than political themes. while postwar literature may not have been the greatest period of english literature, the themes provided excellent critics a high number of novels. such examples include anthony burgess, anthony powell and frank kermode, all of which can be placed under the progressive view.

napoleon the third became a empire in 1873 also known as the era of the franco-prussian war.