What is the most likely reason that nations raised tariffs in imports during the great depression

They wanted to increase the sales of their own products.  In order to stimulate their economy, they concentrate on buying goods and services in their countries.  It was not the time to patronize imports because getting more imports would further harm the economy.  So they limited trade through tariffs. 

first second and third

explanation:

social contract theory basically says that all individuals are born equal, and provided a god given right to consent to be governed. american government is based of this

thomas hobbes and john locke said that we are selfish, individualistic, and constantly at war with each other, therefore we need to be controlled. 

government is defined as the legitimate use of force to control human behavior within territorial boundaries, here comes in hobbes and locke.

hobbes takes the part about controlling human behavior. while locke takes the part of legitimate use of force, since force is not legitimate unless there is consent of the people. 

there are basically 3 goals of the government: 1) maintain order by protecting life and property. 2) providing public goods, those which are typically not provided by the public sector, such as roads and education. 3) promote equality be it political, opportunist or outcome equality.