In this paper, we consider a semi-online preemptive scheduling problem on two uniform machines, where we assume that all jobs have sizes between p and rp for some p 0 and r ≥ 1. The goal is to maximize the continuous period of time (starting from time zero) when both machines are busy. We...

This study aims at testing the theoretical issue according to which multinomial logit (MNL) would give lower performance than a mixed multinomial logit (MMNL) in the presence of heterogeneity. To do so, we construct two samples of patients surveyed within the same regions in rural China, but of...

We estimate the evolution of healthcare demand under the influence of income growth and population aging with two samples of patients surveyed in the same regions, but with an interval of 18 years in rural China and with mixed logit to deal with heterogeneity. In accordance with theoretical and...

[eng] Yong He, Jean-Christophe Simon — The dynamism of the Chinese agriculture in the face of world trade : A new Big Bang China's agricultural production presents a major challenge to national development and to world trade. Ten years ago, L. Brown (1994) predicted that China would reduce its...

Smith viewed the advantages of division of labour exclusively on the basis of individual specialization. It raises a problem on human development, or, of alienation. This paper shows that a generally neglected alternative view can be found in Marshall (1890) and Young (1928). Marshal has argued...

This paper analyses the effects of inter-market and intra-market income heterogeneities on output and social welfare under uniform pricing and differential pricing regimes by considering a finite number of markets. We first derive the linear demand curve in each market under plausible...

The global markets of today offer more selling opportunities to the deteriorating items' manufacturers, but also pose new challenges in production and inventory planning. From a production management standpoint, opportunities to exploit the difference in the timing of the selling season between...