What was the effect of mass production on shoemaking?

The correct answers are that the prices fell down and the availability or the supply got an increase and a transaction from the small business to large factories.  

The production of a huge quantity of patterned products, by using mechanised technology or assembly line is called the mass production. Mass production defines that whenever something is produced in large quantity, the supply of the commodity increases and the prices for the same falls down.

By the end of the 19th  century, the process for shoe-making was entirely mechanized, with production befalling in large factories. The effect of the mass production in the shoe-making industry was that the factories manufactured shoes without any differentiation in size.

answer; the period of time known as the middle ages;