The document discusses the three laws of returns: the law of increasing returns, the law of diminishing returns, and the law of constant returns. The law of increasing returns states that adding more labor and capital leads to improved organization and increased efficiency, resulting in increasing returns. The law of diminishing returns indicates that after a certain point, adding more labor and capital leads to less proportional returns and higher production costs. The law of constant returns suggests that additional productive resources will result in an equal return and no change in the cost of production.