نتایج جستجو برای: tobit analysis

تعداد نتایج: 2824775  

Journal: :Arteriosclerosis, thrombosis, and vascular biology 2015
Arman Qamar Sumeet A Khetarpal Amit V Khera Atif Qasim Daniel J Rader Muredach P Reilly

OBJECTIVE Triglyceride-rich lipoproteins have emerged as causal risk factors for developing coronary heart disease independent of low-density lipoprotein cholesterol levels. Apolipoprotein C-III (ApoC-III) modulates triglyceride-rich lipoprotein metabolism through inhibition of lipoprotein lipase and hepatic uptake of triglyceride-rich lipoproteins. Mutations causing loss-of-function of ApoC-II...

2015
Tracey A. Young Clara Mukuria Donna Rowen John E. Brazier Louise Longworth

Background. Clinical trials in cancer frequently include cancer-specific measures of health but not preferencebased measures such as the EQ-5D that are suitable for economic evaluation. Mapping functions have been developed to predict EQ-5D values from these measures, but there is considerable uncertainty about the most appropriate model to use, and many existing models are poor at predicting E...

Journal: :Medical decision making : an international journal of the Society for Medical Decision Making 2015
Tracey A Young Clara Mukuria Donna Rowen John E Brazier Louise Longworth

BACKGROUND Clinical trials in cancer frequently include cancer-specific measures of health but not preference-based measures such as the EQ-5D that are suitable for economic evaluation. Mapping functions have been developed to predict EQ-5D values from these measures, but there is considerable uncertainty about the most appropriate model to use, and many existing models are poor at predicting E...

Journal: :اقتصاد و توسعه منطقه ای 0
محمد قربانی علی فیروززارع

abstract by using cross-section data which gathered through a survey research in mashhad ,contingent valuation approach and tobit model this study tries to determine economical value of air pollution and effective factors on wtp. based on contingent valuation approach, air pollution total value of airpollution in high-polluted region equals 7134146560 rials per month and in middle-polluted regi...

2011
Weiping Liu Chen Chong

This paper studies financial behaviors of households in China’s Beijing urban area. Demographic and psychometrical data were collected through questionnaire surveys and analyzed by logistic regression and Tobit regression methods. Several important factors which affect the willingness of the investigated households to participate in investment activities and their portfolio allocation decisions...

2006
António Afonso Miguel St. Aubyn

We estimate a semi-parametric model of health production process using a two-stage approach for OECD countries. By regressing data envelopment analysis output efficiency scores on non-discretionary variables, both using Tobit analysis and a single and double bootstrap procedure, we show that inefficiency is strongly related to GDP per head, the education level, and health behaviour such as obes...

2008
Katrin Sommerfeld

Female labor market activity is dependent on the presence and the age of a child, but how do the determinants develop in magnitude and significance with the child’s age? Using German SOEP data from 1991 to 2006 for mothers with young children, the change in maternal labor supply when the child is one, two, and three years old is explicitly addressed. According to the detailed descriptive analys...

2000
S. Sall

Using data collected from 400 farming households in the Casamance area of Senegal, the paper demonstrates that not only farm and farmers' characteristics, but also farmers' perceptions of technology-speci®c characteristics, signi®cantly in ̄uence adoption decisions relating to improved rice varieties. Farmers' perceptions about improved rice varieties were quanti®ed using a quasi-arbitrary ordin...

2012
Bi-Huei Tsai

The benefit of enterprise resource planning (ERP) system for corporate performance is almost ignored at earlier works. To advance earlier researches, this work employs financial data to explore factors of performance advance by illustrating the association between operation management and ERP installation. A two-stage analysis is made to achieve the aim. Firstly, input-output efficiency of a fi...

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