Search Results - subject:"Selection Model"

The Impact of Sanitary and Phytosanitary Measures on Market Entry and Trade Flows

Crivelli, Pramila; Gröschl, Jasmin - ifo Leibniz-Institut für Wirtschaftsforschung an der … - 2012

Heckman selection model on the HS4 disaggregated level of trade. We find that aggregated SPS measures constitute barriers to …

Persistent link: https://www.econbiz.de/10010877600

The Effects of Integrated Pest Management Techniques (IPM) Farmer Field Schools on Groundnut Productivity: Evidence from Ghana

Carlberg, Eric; Kostandini, Genti; Dankyi, Awere - Agricultural and Applied Economics Association - AAEA - 2012

This study examines the impact of Integrated Pest Management-Farmer Field School (IPM-FFS) programs on groundnut production in Ghana. The program was conducted in the groundnut regions of Ghana with the goal to improve groundnut agriculture through the dissemination of information and technology...

Persistent link: https://www.econbiz.de/10010881051

A Good Worker is Hard to Find: Skills Shortages in New Zealand Firms

Mok, Thai-Yoong Penny; Stevens, Philip Andrew; Timmins, … - Ministry of Business, Innovation and Employment, … - 2012

This paper examines the determinants of firms’ skill shortages, using a specially-designed survey, the Business Strategy and Skills (BSS) module of the Business Operations Survey. We combine the BSS module with additional data on firms in the Statistics New Zealand’s prototype Longitudinal...

Persistent link: https://www.econbiz.de/10010840544

Reducing bias due to missing values of the response variable by joint modeling with an auxiliary variable

Miranda, Alfonso; Rabe-Hesketh, Sophia; McDonald, John W. - Department of Quantitative Social Science, Institute of … - 2012

approach with alternative approaches such as the Heckman selection model and inverse probability of selection weighting. …

Persistent link: https://www.econbiz.de/10010850093

Determining Farmers’ Willingness-To-Grow Cellulosic Biofuel Feedstocks on Agricultural Land

Lynes, Melissa K.; Bergtold, Jason S.; Williams, Jeffery R. - Agricultural and Applied Economics Association - AAEA - 2012

’ willingness to harvest crop residue, or grow a dedicated annual or perennial bioenergy crop. A Heckman selection model is used to …

Persistent link: https://www.econbiz.de/10010916710

The Impact of Sanitary and Phytosanitary Measures on Market Entry and Trade Flows

Crivelli, Pramila; Gröschl, Jasmin - Institut d'Economie et Econométrie, Université de Genève - 2012

Heckman selection model on the HS4 disaggregated level of trade. We find that aggregated SPS measures constitute barriers to …

Persistent link: https://www.econbiz.de/10011070711

Choosing the best model in the presence of zero trade: a fish product analysis

Tran, Nhuong; Wilson, Norbert L.W.; Hite, Diane - International Agricultural Trade Research Consortium - IATRC - 2012

The purpose of the paper is to test the hypothesis that food safety (chemical) standards act as barriers to international seafood imports. We use zero-accounting gravity models to test the hypothesis that food safety (chemical) standards act as barriers to international seafood imports. The...

Persistent link: https://www.econbiz.de/10010923177

"Maximizing Benefits for Women: A Charitable Donation Allocation Problem"

Toussaint, Jenna; Wu, Shang; Messer, Kent D. - Department of Economics, Lerner College of Business and … - 2012

serving women, is a notable exception to this pattern as they have begun using a novel “Hybrid Selection Model” that combines … rank-based selection model that was previously used by this group, and currently in use by most foundations, yields lower …

Persistent link: https://www.econbiz.de/10010691573

Paying informally for public health care in Albania: scarce resources or governance failure?

Tomini, Sonila; Groot, Wim - United Nations University-Maastricht Economic Research … - 2012

Informal payments for health care are common in most former communist countries. This paper explores the demand side of these payments in Albania. Using tobit and Heckman selection models we control for individual determinants of informal payments in outpatient and inpatient health care....

Persistent link: https://www.econbiz.de/10010712101

Of Butterflies and Caterpillars: Bivariate Normality in the Sample Selection Model

Pigini, Claudia - Dipartimento di Scienze Economiche e Sociali, Facoltà … - 2012

Since the seminal paper by Heckman (1974), the sample selection model has been an essential tool for applied economists … proposals for the sample selection model under non-normality. There is a marked dichotomy in the literature that has developed … of sample selection model that deal with distributional misspecification giving the practitioner a unified framework of …

Persistent link: https://www.econbiz.de/10010610106