What was the biggest commonality for all of the banking crises of the 20th and 21st centuries?

Banking panics, which is the basis for financial crises and banking crises of 20th and 21st centuries.

Explanation:

A banking panic is a financial term often referred to as bank panic, it describes a financial crisis that occurs as a result of many bank customers suddenly wanting to convert their threatened deposits into cash or totally withdraw all their cash deposit out of their domestic banking system altogether.

Unlike Bank run that affect single bank, bank panic affects many banks together, thereby leading to systemic banking crises, in which a country experiences many defaults, hence, many financial institutions and corporations face great difficulties repaying contracts

Hence, due to economic recession that occurred in the 20th century and recently occurred in 21st century, bank panic has been the resulting effects, leading to major financial banking crises.

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. 

i think it is true i hope this is