The Simon principle is an economic assessment used to define a country’s immigration policy. The principle states that if the marginal immigrant makes a non-negative contribution to the treasury you continue to admit immigrants until the contribution goes to zero. Liberals and conservatives support the principle. Liberals believe immigrants are acceptable as long as they benefit the country’s economy positively. Conservatives believe countries should have no issue with immigrants as long as the country is not a welfare state. For instance the United States has generous healthcare, education and welfare systems. U.S. immigration policy mandates that a person seeking citizenship must not be a public charge. In short the person must not have
