I analyze monopoly pricing and quality decisions under network effects. High quality premium and low quality punishment are found to depend on how the impact of marginal costs on quality relates to the intensity of the network effect and the optimism of the producer about final demand. More...

This paper is concerned with bootstrap hypothesis testing in high dimensional linear regression models. Using a theoretical framework recently introduced by Anatolyev (2012), we show that bootstrap F, LR and LM tests are asymptotically valid even when the numbers of estimated parameters and...

This paper develops an extension of the recursive core to the setting of overlapping coalitions. We show that the cooperative game theoretical traditional way of separating a deviant coalition from the game played by the ones left behind is no more satisfactory. We therefore introduce a new...

Biotechnology is still in the early stage of development. It offers a window of opportunity for emerging developing countries catching up. Scientific research and industrial applications of biotechnology in China have been rapidly developing. The paper examines whether Chinese biotechnology is...

Quebec’s forests represent 20% of the Canadian forest and 2% of world forests. They play a major role for habitat preservation, supplying goods and services to the population. Climate change will have an impact on the forest through inter alia increased droughts, forest fires, warmer weather...

Data contamination and excessive correlations between regressors (multicollinearity) constitute a standard and major problem in econometrics. Two techniques enable solving these problems, in separate ways: the Gini regression for the former, and the PLS (partial least squares) regression for the...

Depuis les travaux d’Aschauer (1989a), et Munnell (1990a), de nombreux travaux ont tenté d’établir et de mesurer la relation entre les dépenses publiques en infrastructures et la productivité des secteurs d’activité ou la croissance économique. Ce rapport fait d'abord une revue de...

This article examines whether and how transboundary river water pollution spillover may affect resident’s Willingness to Pay (WTP) for a river water quality improvement project. Based on a CVM survey conducted in 20 cities located in the Xijiang river basin located in south China, our study...

This paper estimates a reduced form model of the Canadian mortgage demand from 1971 to 2010. Three equations are estimated, one for the average real value of new mortgage loans originated, another one for the number of new loans and a third for the flow of real repayment of existing loans. The...

Panel data, frequently employed in empirical investigations, provide estimators being strongly biased in the presence of atypical observations. The aim of this work is to propose a l1 Gini regression for panel data. It is shown that the fixed effects within-group Gini estimator is more robust...