The shift of the frontier from A to B was most likely caused
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The shift of the frontier from A to B was most likely caused by which of the following?
A. technological improvement in the production of batteries
B. more labour available in the economy
C. a general technological breakthrough
D. more capital available in the economy
A. technological improvement in the production of batteries
B. more labour available in the economy
C. a general technological breakthrough
D. more capital available in the economy
A
这是电池和面包圈两商品的边际效益图
由A曲线变成B曲线后,单位面包圈能换取更多的电池了,说明电池价格降低
而电池生产技术的提高能使电池生产成本降低,进而使电池价格降低
因此选A
这是电池和面包圈两商品的边际效益图
由A曲线变成B曲线后,单位面包圈能换取更多的电池了,说明电池价格降低
而电池生产技术的提高能使电池生产成本降低,进而使电池价格降低
因此选A
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