Search results for "Probit"

Consumers perception of food safety related risk in the italian market

2019

The aim of this paper is to define the factors affecting the consumers' perception on food risk associated to the consumption of products (i) containing food additives, (ii) obtained with the use of pesticides, and (iii) processed through novel food technologies, in relation to different socio-economic and demographic characteristics, the source of acquisition of information on food safety issues, and the place of purchase of food. The study is based on a sample of 392 consumers, living in Italy, and it uses three ordered probit estimation models to process data collected. Findings show that food risk perception is greater among youngsters, mainly for the additives and residual pesticides i…

Evaluating Project Deadweight Measures: Evidence from Finnish Business Subsidies

2009

An important problem in measuring the impacts of business subsidies is their separation from deadweight, which refers to changes that would have occurred even in the absence of intervention. Both public and private assessments have been used previously to study deadweigh, but so far little is known about how they correspond to each other. To address this issue we conducted a joint evaluation of the private and public assessments of deadweight for Finnish business projects. A unique dataset combines large register data with both public and private information on projects financed in 2000–03. First, our results suggest that the different measures for deadweight are greatly uncorrelated, and …

A Comment on the Coefficient of Determination for Binary Responses

1992

Abstract Linear logistic or probit regression can be closely approximated by an unweighted least squares analysis of the regression linear in the conditional probabilities provided that these probabilities for success and failure are not too extreme. It is shown how this restriction on the probabilities translates into a restriction on the range of the coefficient of determination R 2 so that, as a consequence, R 2 is not suitable to judge the effectiveness of linear regressions with binary responses even if an important relation is present.

Fitting generalized linear models with unspecified link function: A P-spline approach

2008

Generalized linear models (GLMs) outline a wide class of regression models where the effect of the explanatory variables on the mean of the response variable is modelled throughout the link function. The choice of the link function is typically overlooked in applications and the canonical link is commonly used. The estimation of GLMs with unspecified link function is discussed, where the linearity assumption between the link and the linear predictor is relaxed and the unspecified relationship is modelled flexibly by means of P-splines. An estimating algorithm is presented, alternating estimation of two working GLMs up to convergence. The method is applied to the analysis of quit behavior of…

Access to Secondary Education in Albania: Incentives, Obstacles, and Policy Spillovers

2006

When judged either by educational attainment of adult population or by secondary and tertiary enrollment rates, by 2002 Albania compared very unfavorably to most European countries, including its neighbors. This study examines the determinants of secondary enrollment applying unobserved family effect probit model to data from Living Standards Measurement Survey 2002- 2003. The focus of the paper is to investigate the importance of access to school and to further education for enrollment. We find that both absence of a secondary school in the community and the distance from the residence location to a secondary school have strong negative effect on enrollment, controlling for family backgrou…

Aika-, ikä- ja kohorttivaikutukset kotitalouksien rahoitusvarallisuuden rakenteisiin Suomessa vuosina 1994-2004

2007

French firms’ strategies for protecting their intellectual property

2012

In attempting to protect their innovations, firms can choose from a range of mechanisms, which may be either non-statutory (trade secrets, design complexity, and lead-time advantage over competitors) or statutory (patent, design registration, trademark, copyright). Yet, little is known about how firms do actually make their choices from among these different appropriability mechanisms. The aim of this paper is to determine how French firms’ use of intellectual property protection mechanisms relates to the type of innovation, the characteristics of the market sector in which they operate, the firms’ characteristics, and their human resources strategies. Our empirical model draws on four Fren…

L'éducation à l'entrepreneuriat : quelle pertinence des politiques éducatives et de formation au Burkina-Faso ?

2020

Le colloque s'est déroulé en visio-conférence; International audience; L'éducation à l’entrepreneuriat (EE) est considérée comme un élément central dans la promotion de l’entrepreneuriat. Elle peut contribuer au développement d’attitudes et d’aptitudes nécessaires au processus entrepreneurial. Dans cet article, nous analysons l’impact de l’EE sur le comportement entrepreneurial de 896 étudiants des universités Ouaga I et II. Autrement-dit, il examine son effet sur leur niveau de compétence et leur capacité entrepreneuriale perçue, ainsi que leur intention d’entreprendre. Ce travail apporte également une analyse critique sur la pertinence des différentes politiques éducatives et de formation…

What makes a citrus farmer go 'organic'? Empirical evidence from Spanish citrus farming

2012

Organic farming is increasing its share of total world food output and receiving grow-ing support from policymakers concerned with agricultural sustainability issues. This paper studies the characteristics of citrus farmers in the Spanish region of Valencia that affect their probability of becoming organic farmers. A fair understanding of these characteristics may help policymakers improve the design of agricultural policies aimed at supporting organic citrus practices. As regards the methodology, a probit model is estimated with information from a sample of conventional and organic citrus farmers obtained from a survey designed for a larger research project aimed at analysing Valencian cit…

Search strategies in innovation networks: The case of the Hungarian food industry

2020

In the food sector, open innovation has become of particular interest. This paper considers open innovation search strategies in the food and beverages industry and examines the probability of using different innovation sources with respect to the type of innovation. Although the information search for new ideas, tools and solutions in the innovation process regarding the scope and depth is well explored and interpreted in the literature, the probability of using the different sources with respect to type of innovation is rarely investigated. To answer these questions, first a probit, then OLS regression model is adopted, in order to understand the chance of a specific source of information…