Tucker, 72, a former senior education official in Washington, is the president of the National Center on Education and the Economy, which he founded in 1988. Since then he has focused much of his research on comparing public education in the United States with that of places that have far better results than we do — places like Finland, Japan, Shanghai and Ontario, Canada. His essential conclusion is that the best education systems share common traits — almost none of which are embodied in either the current American system or in the reform ideas that have gained sway over the last decade or so.