Answer: one result of the increased productivity in the 1950s is that Americans enjoyed a higher standard of living than other nations.
Explanation: Increased productivity means that the production of goods and services increased and per capita is growing. The increase in productivity raises the people standard of living because real income improves people power to buy goods and services.
Increased productivity in the 1950s improved the Americans level of education, housing and so on. Their standard of living increased on factors such as income, Gross Domestic Product (GDP), economic and political stability, religious freedom, environmental quality and so on.