• Title/Summary/Keyword: probit model with censoring

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Determinants of High Risk Drinking in Korea (한국 사회의 고위험 음주 결정요인에 관한 연구: 중도 절단 이변량 프로빗 모형의 적용)

  • Chung Woojin
    • Korea journal of population studies
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    • v.26 no.2
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    • pp.91-110
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    • 2003
  • This study analyzed data from 1997 Korea's Behavioral Risk Factor Surveillance System Survey collected through telephone questionings based on the multi-stage stratified random sampling. We categorized respondents into those who had ever drunk an alcoholic beverage in the last month and those who didn't and, referring to the World Health Organization's guideline, the former group were further categorized into low risk drinking group and high risk drinking group. Employing bivariate probit regression analyses with censoring on independent variables such as preferred type of alcoholic beverage, the number of types of beverages consumed, age, marital status, education, occupation, residential area, current smoking, body mass index and stress suggested (1) that those who prefer soju are more likely to involve high risk drinking than those who and prefer the other alcoholic beverages (2) that those who are relatively older, who live without a partner, who have jobs, who. are vulnerable to stress, or who enjoy more than one type of beverage are more likely to be exposed to high risk drinking than the others.

Identifying Factors Affecting Consumer's Choice to Imported Organic Agricultural Products (수입산 유기농산물 구입의향 요인분석)

  • Han, Jae-Hwan;Jeong, Hak-Kyun
    • Korean Journal of Organic Agriculture
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    • v.22 no.1
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    • pp.67-80
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    • 2014
  • The objective of the study is to investigate factors affecting consumers' purchase intention toward imported organic agricultural products. To accomplish the goal of the study a consumer survey was administered for randomly selected households residing in capital area. Results show that the more consumers trust a safety of domestic products and a certification system, the less they purchase the imported products. In addition, it is demonstrated that educated consumers are relatively less reluctant to imported organic agricultural products. Finally, an improvement of domestic certification system, decrease of price of environmentally friendly agricultural products, and aggressive promotion are required to enhance the competitiveness of the domestic environmentally friendly agricultural products.