The acceleration principle and the nature of business cycles

I. Introduction, 403. — II. Demand equations and evidence for acceleration, 404. — III. The nonstochastic case: no oscillations without acceleration, 406. — IV. Autocovariances of a linear stochastic system, 408. — V. Spectral densities of a linear stochastic system, 411. —VI. Conclusions, 417. © 1968, by the President and Fellows of Harvard College.