A new demand system is introduced, the Nested PIGLOG model, nesting thirteen other demand systems including five that … are also new. This new model and its nested special cases are applied to models of U.S. food demand that include food …

In recent years, the theoretical restrictions of consumer demand have been examined in post-sample forecasting … Normalized Quadratic Inverse Demand System (NQIDS) specifications by using rolling windows and generating one- to four-step ahead … forecasts. Data for eleven categories of South Atlantic fish spanning 1980 through 2001 are used in estimation. In addition to …