Economies of scale means that output increases faster than input. Here scale refers to large production batches caused by the expansion of production capacity. Here economies refers to cost saving, benefit improvement or increasing return.
According to the above definition, which of the followings does not belong to economies of scale?
In a factory, it takes 10 hours of labor to produce a bicycle. Under the condition of the same cost, it takes 5000 hours to produce 500 cars. After the expansion of the factory, it takes only 30000 hours to produce 5000 cars.