@book{63433,
	author = {Okun, Arthur M.,},
	title = {Equality and efficiency, the big tradeoff},
	publisher = {The Brookings Institution},
	year = {[1975]},
	address = {Washington},
	note = {"Revised and expanded version of material presented in the Godkin lectures at the John F. Kennedy School of Government of Harvard University in April 1974."}
}