Is "bigness" in industry the result of manipulation, or the natural workings of economic laws? Is "bigness" in industry bad and if so, why?

Bigness in industry is resulted because of the working of the economic laws and increase in the efficiency.

Explanation:

Bigness in industry means that the size of the industries has grown in the economy. The production has been increased, the quality and the quantity of the production has gone up.

The bigness in industry somewhat harmed the economy because the way the employees were dealt by the employers was not very fair. There was damage done to the environment also because of the increase in the production by the industries. So bigness in industry was bad.