dr. weiner's 1991 book "the child and the state in india: child labor and education policy in comparative perspective" (princeton university press, 4th ed., ) had a major impact in indian debates on how to end child labor, and was perhaps his "magnum opus". "it was his crowning achievement. it made all of us think about the question of illiteracy," according to jagdish bhagwati, a columbia university economist and colleague since the mid-1950s. dr. bhagwati said the book prompted economists to recommend more investments in education for the poor, and policies to help poor people recognize education as a valuable investment.