Monetary policy is the process by which the monetary authority of a country controls the supply of money, often targeting a rate of interest for the purpose of promoting economic growth and stability. The official goals usually include relatively stable prices and low unemployment. Monetary theory provides insight into how to craft optimal monetary policy. It is referred to as either being expansionary or contractionary, where an expansionary policy increases the total supply of money in the economy more rapidly than usual, and contractionary policy expands the money supply more slowly than usual or even shrinks it. Expansionary policy is traditionally used to try to combat unemployment in a recession by lowering interest rates in the hope that easy credit will entice businesses into expanding. Contractionary policy is intended to slow inflation in hopes of avoiding the resulting distortions and deterioration of asset values.

Monetary policy differs from fiscal policy, which refers to taxation, government spending, and associated borrowing.

Milton Friedman (July 31, 1912 – November 16, 2006) was an American economist, statistician, and author who taught at the University of Chicago for more than three decades. He was a recipient of the Nobel Memorial Prize in Economic Sciences, and is known for his research on consumption analysis, monetary history and theory, and the complexity of stabilization policy. As a leader of the Chicago school of economics, he influenced the research agenda of the economics profession. A survey of economists ranked Friedman as the second most popular economist of the twentieth century behind John Maynard Keynes, and The Economist described him as "the most influential economist of the second half of the 20th century…possibly of all of it."

Friedman's challenges to what he later called "naive Keynesian" (as opposed to New Keynesian) theory began with his 1950s reinterpretation of the consumption function, and he became the main advocate opposing activist Keynesian government policies. In the late 1960s he described his own approach (along with all of mainstream economics) as using "Keynesian language and apparatus" yet rejecting its "initial" conclusions. During the 1960s he promoted an alternative macroeconomic policy known as "monetarism". He theorized there existed a "natural" rate of unemployment, and argued that governments could increase employment above this rate (e.g., by increasing aggregate demand) only at the risk of causing inflation to accelerate. He argued that the Phillips curve was not stable and predicted what would come to be known as stagflation. Friedman argued that, given the existence of the Federal Reserve, a constant small expansion of the money supply was the only wise policy.

Warren Mosler (born September 18, 1949) is an American economist, president and founder of Mosler Automotive, and co-founder of the Center for Full Employment And Price Stability at the University of Missouri-Kansas City. He briefly ran for President of the United States as a member of the Democratic Party in the 2012 election before dropping out to run for U.S. Senate.

Mosler spent his early life in Manchester, Connecticut and was initially employed in Hartford before moving to New York City to work on Wall Street. In 1982, he began a hedge fund, which by the 1990s was largely turned over to his partners. Later, he relocated to the U.S. Virgin Islands to participate in a government-sponsored economic growth initiative.

Academically, he is known for his writings on Modern Monetary Theory, an economic theory that describes the way fiat money is created and utilized in modern economies.

In February 2009, Mosler declared his candidacy with the Federal Elections Commission to run for the office of President of The United States as an independent. In April 2010, he withdrew to run in the United States Senate election in Connecticut, 2010, briefly as a Democrat, but ultimately as an independent. In the final tally he received 0.98% of the vote.