The condition that the sum of the elasticities of demand for exports and imports exceed one (in absolute value); that is, hX + hM > 1, where hX, hM are the demand elasticities for a country's exports and imports respectively. Assuming the current account balance = 0 and supply elasticities are inifinte (necessary but not sufficient) this is the condition for a depreciation to improve the trade balance
Alfred Marshall
The US Secretary of State, George Marshall was the author of the Marshall Plan for rebuilding Europe after WW II.
Secretary of State George Marshall AKA General George Marshall. See link below.
Alferd Marshall....
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Fred Lerner's birth name is Frederick Marshall Lerner.
Avi Lerner's birth name is Abraham Lerner.
Diki Lerner's birth name is Richard Daniel Lerner.
Katharine Lerner's birth name is Katharine Lynn Lerner.
Samuel Lerner's birth name is Lerner, Samuel Manuel.
Thessaly Lerner's birth name is Thessaly Storm Lerner.
The Marshall-Lerner condition states that a devaluation or depreciation of a country's currency will improve its trade balance if the sum of the price elasticities of demand for exports (E_x) and imports (E_m) is greater than one: ( E_x + |E_m| > 1 ). The derivation assumes that consumers respond to price changes in a predictable manner, meaning both export and import demand are elastic. Additionally, it presumes that the currency change affects the prices of goods in foreign and domestic markets, leading to changes in quantity demanded. Under these conditions, the trade balance improves as the increased export volumes and reduced import volumes more than offset the initial revenue effects of currency depreciation.
Avi Lerner is 6' 2".
Katharine Lerner is 5' 5".
Harriet Lerner was born in 1944.
David Lerner was born in 1951.
David Lerner died in 1997.