Abba P. Lerner
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Abba Ptachya Lerner (October 28, 1903–October 27, 1982) was an American economist.
Lerner was born on October 28, 1903 in Bessarabia (territory now in Ukraine or Moldova). He grew up in a Jewish family, which emigrated to Great Britain when Lerner was three years old. Lerner grew up in the London East End. From the age of sixteen he worked as a machinist, a teacher in Hebrew schools, and as a businessman. He entered the London School of Economics in 1929. A six month stay at Cambridge in 1934–1935 brought him into contact with John Maynard Keynes. Abba married Fraucine Klining in 1936; they had one child, Albert, born in December of 1936.
In 1937, Lerner emigrated to the United States.
[edit] Accomplishments
- Just like Oskar Lange Lerner developed, a model of market socialism, which differed form the pure planned economy. It became known as the Third Way.
- Like Wassily Leontief, Lerner improved the calculations made by Wilhelm Launhardt on the effect of terms of trade.
- Furthermore Lerner improved a formula of Alfred Marshall, which is known since as the Marshall-Lerner principle.
- The Lerner-Samuelson theorem also goes back to Lerner.
- Lerner developed the concept of distributive efficiency, which shows that economic equality will produce the greatest total happiness with a given amount of wealth.
- Lerner also contributed to the Lange-Lerner-Taylor theorem.
- The Lerner symmetry theorem states that an import tariff can have the same effects as an export tax.
- The Lerner Index measures potential monopoly power as the negative inverse of demand elasticity.
- Based on effective demand principle and chartalism, Lerner developed the Functional Finance, a theory concerned about the maintenance of the full employment and low inflation.
