The Professor Sanford has provided an example of a hierarchy of needs which is a psychological theory given by Maslow. According to this law, when a deficit need is fulfilled or satisfied one goes towards another step of fulfilling or satisfying another set of needs.
Maslow initially stated the fact that individuals must satisfy the lower level of deficit needs before succeeding to meet the high levels of growth requirements.
Professor Sanford is explaining that physical safety is the basic need which must be met before the city dwellers develop a close friendship with the fellow citizens.
Fiscal policy is the use of government spending and taxation to influence the economy. Governments typically use fiscal policy to promote strong and sustainable growth and reduce poverty.