The main insight learned from interdisciplinary studies is the return to specialization
George StiglerA Swedish physicist can not discuss his work with fifty people unless he goes abroad. A Swedish economist can get opinions and instructions in his native language from thousands upon thousands of his fellow citizens.
George Stigler...the number of saintly men has not yet risen to the level where the census makes them a separate statistical category.
George StiglerWhy, when the economist gives advice to his society, is he so often cooly ignored? He never ceases to preach free trade, and protectionism is growing in the United States. He deplores the perverse effects of minimum wage laws, and the legal minimum is regularly raised each 3 or 5 years. He brands usury laws as a medieval superstition, but no state hurries to repeal its law.
George Stigler