Sawdust which is the main waste from wood industry has been used as a raw material forremoval of Brilliant Cresyl Blue toxic dye. The effects of various parameters such as pH,electrolyte concentration, adsorbent dose, contact time and agitation rate were studied for theremoval of the dye in a concentration of 50 mg L-1. The optimum condition for the studiedparameters was applied for various con...

Conflicting trends confound the pharmaceutical industry. The productivity of pharmaceutical innovation has declined in recent years. At the same time, the cohort of large companies who are the leading engines of pharmaceutical R&D has become increasingly concentrated. The concurrent presence of these trends is not sufficient to determine causation. In response to lagging innovation prospects, s...

This paper examines the impact of the concentration of the property insurance industry on economic growth in China. We first compute the Herfindahl-Hirschman Index (HHI) for the Chinese property insurance industry and establish a two-step system of generalized methods of moments (Two-Step SYS-GMM) estimation to compute the economic effect using a unique data set from the years 1980 to 2014. The...

Does public policy designed to promote market competition indeed achieve the intended consequence? Using the wireless industry as a testing field, this paper examines this question by focusing on the impact of mobile number portability (MNP) regulation on competition. We first construct a switching-costs model in which market growth rate and initial market structure are two salient industry cha...

a r t i c l e i n f o If localization economies are present, firms within denser industry concentrations should exhibit higher levels of performance than more isolated firms. Nevertheless, research in industrial organization that has fo-cused on the influences on firm survival has largely ignored the potential effects from agglomeration. Recent studies in urban and regional economics suggest th...

We examine theoretically and experimentally two countervailing effects of industry concentration in common value auctions. Greater concentration of information among fewer bidders reduces competition but increases the precision of private estimates. We demonstrate that this generally leads to more aggressive bidding. However, the reduction in competition dominates the informational effects, res...

Based on some stylised fact, and using a proprietary database of more than 750 agreements spanning from collaborations to merger and acquisition agreements between 1997 and 2003, we try in this paper to characterise and understand the movement of industry concentration. We ask whether the smart card industry will know a monitoring oligopolistic concentration on the fundamental assets and market...