He was a strong supporter for labor-management co-operation and was on the frontline for wage and benefit protections and industrial unionism legislation.

In 1933, Green's endeavors persuaded President Franklin D. Roosevelt to appoint him to the Labor Advisory Council of the National Recovery Administration.

He won public support for legislating benefits for all workers and co-operated with employers in the name of mutual self-interest and the collective good.

Ultimately, Green supported a voluntary incomes policy between labor and management, binding higher wages to productivity growth.

[1] Green's support was critical to winning passage of the Norris-La Guardia Act of 1932, which reduced the practice of labor restrictions and banned the yellow-dog contract.

Green was also successful in acquiring federation support for a national unemployment insurance system, sponsored largely by employer donations.

[1] In 1935, Green facilitated the passage of the National Labor Relations Act, aimed at empowering workers' rights to organize and take part in collective bargaining.

In 1938, Green helped pass the Fair Labor Standards Act, becoming the first federal law in instituting minimum wages and the 40-hour workweek.