Possibility of repetition in the 40' s of what happened in 1921 and early 30's; what should government do?; its role of policeman in the past; perhaps should help to prevent Depression rather than just clearing away wreckage afterward; new science of government beginning to appear; possible building boom, and its dangers; can stable conditions be maintained?; need answers to questions; government needs to coordinate functions of big organized groups, and also unorganized groups; obligations of under- privileged to government; "pressure game" will blow up if all groups use it; if government to be coordinator, stimulator, etc., problem of economic democracy is supremely important; the problem in industry, based on experience in agriculture; 3 guiding principles; opportunity to work out an economic democracy in the United States.