Communication media and demand for printing and publishing papers in the united states

摘要

To predict the demand for printing and publishing papers, a model was first developed of the demand for printed materials-newspapers, books, magazines, and their substitutes- computers, and televisions and radios. A two-stage Almost ldeal Demand System(AIDS) represented the consumer demand for communication media (stage one) and for printed materials, computers, and televisions and radios (stage two).