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Boosting the accuracy of hedonic pricing models

Wezel, M.C. van; Kagie, M.; Potharst, R. - Erasmus University Rotterdam, Econometric Institute - 2005

Hedonic pricing models attempt to model a relationship between object attributes and the object's price. Traditional hedonic pricing models are often parametric models that suffer from misspecification. In this paper we create these models by means of boosted CART models. The method is explained...

Persistent link: https://www.econbiz.de/10005000463

DOWN MARKET EFFECTS IN BEEF COW-CALF HERDS

Ott, Stephen L. - United States Department of Agriculture, National … - 1998

In 1995 and 1996, prices for weaned calves were at the lowest point for the current cattle market cycle. The National Animal Health Monitoring System (NAHMS) Beef ,97 Study examined the effects of the down market on beef cow-calf herd management practices. Most producers did not alter management...

Persistent link: https://www.econbiz.de/10005522190

Using break quantities for tactical optimisation in multistage distribution systems

Kleijn, M.J.; Dekker, R. - Erasmus University Rotterdam, Econometric Institute - 1997

marketing process, and a qualitative and quantitative analysis on the implications for the transportation and inventory costs …

Persistent link: https://www.econbiz.de/10004972199

Forecasting in marketing

Franses, Ph.H.B.F. - Erasmus University Rotterdam, Econometric Institute - 2004

support decisions in marketing. Due to the sometimes specific nature of variables in marketing, the discipline uses …

Persistent link: https://www.econbiz.de/10004972205

On Purchase Timing Models in Marketing

Frenk, J.B.G.; Zhang, S. - Erasmus University Rotterdam, Econometric Institute - 1997

In this paper we consider stochastic purchase timing models used in marketing for low-involvement products and show …

Persistent link: https://www.econbiz.de/10008584626

BEEF '97, PART I: REFERENCE OF 1997 BEEF COW-CALF MANAGEMENT PRACTICES

Dargatz, David - United States Department of Agriculture, National … - 1997

The NAHMS Beef '97 Study was designed to provide both participants and the industry with information on the nation's cow-calf population for education and research. The USDA's National Agricultural Statistics Service (NASS) collaborated with NAHMS to select a statistically-valid sample yielding...

Persistent link: https://www.econbiz.de/10005503428

BEEF, '97, PART IV: CHANGES IN THE U.S. BEEF COW-CALF INDUSTRY, 1993-1997

Dargatz, David - United States Department of Agriculture, National … - 1998

Section 1 of this report shows demographic changes of the U.S. beef cow-calf industry from a historical perspective from data provided by the National Agricultural Statistics Service (NASS) and Census of Agriculture. Results of two NAHMS national studies in Section II complete the overview of...

Persistent link: https://www.econbiz.de/10005503429

SWINE '95 PART II: REFERENCE OF 1995 U.S. GROWER/FINISHER HEALTH AND MANAGEMENT PRACTICES

Bush, Eric J. - United States Department of Agriculture, National … - 1996

This report is the second of a three-part release of national information from the second National Animal Health Monitoring System (NAHMS) swine study, the Swine '95 Grower/Finisher. The 1990 National Swine Survey focused on farrowing sows and preweaning piglets. For the Swine '95 Study, the...

Persistent link: https://www.econbiz.de/10005503431

SWINE '95 PART III: CHANGES IN THE U.S. PORK INDUSTRY, 1990-1995

Bush, Eric J. - United States Department of Agriculture, National … - 1997

This report is the third of a three-part release of national information from the second National Animal Health Monitoring System (NAHMS) swine study. For the Swine '95 study, the USDA's National Agricultural Statistics Service (NASS) collaborated with Veterinary Services (VS) to select a...

Persistent link: https://www.econbiz.de/10005503433

CHAPA, BEEF COW/CALF HEALTH AND PRODUCTIVITY AUDIT, PART II: BEEF COW/CALF REPRODUCTIVE AND NUTRITIONAL MANAGEMENT PRACTICES

Dargatz, David - United States Department of Agriculture, National … - 1994

As part of the National Animal Health Monitoring System (NAHMS ), USDA:APHIS:Veterinary Services conducted a national study of beef production, the Beef Cow/Calf Health and Productivity Audit (CHAPA). This study was designed to provide both participants and the industry with information on...

Persistent link: https://www.econbiz.de/10005503435