Providing aid to the unemployed is a strategy that is used to prevent cutbacks in consumption of goods and services, which can lead to a vicious cycle of further job losses and further decreases in consumption and demand. Many countries aid the unemployed through social welfare programs. Such unemployment benefits include unemployment insurance, unemployment compensation, welfare, and subsidies to aid in retraining. The main goal of such programs is to alleviate short-term hardships and, more importantly, to allow workers more time to search for a job. A direct demand-side solution to unemployment is government-funded employment of the able-bodied poor. This was notably implemented in Britain from the 17th century until 1948 in the institution of the workhouse, which provided jobs for the unemployed with harsh conditions and poor wages to dissuade their use. A modern alternative is a job guarantee in which the government guarantees work at a living wage. Temporary measures can include public works programs such as the Works Progress Administration. Government-funded employment is not widely advocated as a solution to unemployment except in times of crisis. That is attributed to the public sector jobs existence depending directly on the tax receipts from private sector employment. In the US, the unemployment insurance allowance is based solely on previous income (not time worked, family size, etc.) and usually compensates for one third of previous income. To qualify, people must reside in their respective state for at least a year and work. The system was established by the Social Security Act of 1935.
However, the economy eventually hits an "inflation barrier" that is imposed by the four other kinds of unemployment to the extent that they exist. Historical experience suggests that low unemployment affects inflation in the short term but not the long term. In the long term, the velocity of money supply measures such as the MZM ("money zero maturity", representing cash and equivalent demand deposits) velocity is far more predictive of inflation than low unemployment.Some demand theory economists see the inflation barrier as corresponding to the natural rate of unemployment. The "natural" rate of unemployment is defined as the rate of unemployment that exists when the labour market is in equilibrium, and there is pressure for neither rising inflation rates nor falling inflation rates. An alternative technical term for that rate is the NAIRU, the Non-Accelerating Inflation Rate of Unemployment. Whatever its name, demand theory holds that if the unemployment rate gets "too low," inflation will accelerate in the absence of wage and price controls (incomes policies). One of the major problems with the NAIRU theory is that no one knows exactly what the NAIRU is, and it clearly changes over time. The margin of error can be quite high relative to the actual unemployment rate, making it hard to use the NAIRU in policy-making.Another, normative, definition of full employment might be called the ideal unemployment rate. It would exclude all types of unemployment that represent forms of inefficiency.