background: educational centers have higher standards for controlling noise pollution as it has been shown that noise pollution is a major cause of discomfort for teachers and students. noise pollution reduces concentration, interferes in the conversation, and leads to dropouts and lower grades especially in mathematics. the present study aimed to evaluate noise pollution in the schools of birj...

Industries where prices decline rapidly experience early ‘shakeouts’. Existing models of the shakeout do not explain this negative relation between price decline and time to shakeout. We set up a vintage-capital model that explains this relation, and we provide some evidence in support of the mechanism that we propose. The relation emerges naturally in a vintage-capital model in which shakeouts...

Research Employers and Industries Pace University Library [1] Recommended databases are: "Business and Company Resource Center", "Business Source Premier", “Lexis-Nexis Academic” and “Mergent Online”. If you are a current student, you may enter your library bar code to use many of the databases. For alumni: access to the library databases will require obtaining an alumni ID card which must be p...

Many writers have claimed that research and development (R&D) has two ‘faces’. In addition to the conventional role of stimulating innovation, R&D enhances technology transfer by improving the ability of firms to learn about advances in the leading edge (‘absorptive capacity’). In this paper we explore this idea empirically using a panel of industries across twelve OECD countries. We find evide...

Research Employers and Industries Pace University Library [1] Recommended databases are: "Business and Company Resource Center", "Business Source Premier", “Lexis-Nexis Academic” and “Mergent Online”. If you are a current student, you may enter your library bar code to use many of the databases. For alumni: access to the library databases will require obtaining an alumni ID card which must be p...

Recent deregulation of telecommunications in the U.S. and elsewhere has highlighted the importance of interconnection in network industries. In this paper, we analyse interconnection in a deregulated network where the participants compete in the final retail market. We consider both the case of a mature industry as well as one where a new entrant challenges the incumbent. In the later case, net...

Noise is essential for the existence of a liquid market, and if noise traders are not present in the market, the trade volume will drop severely and an important aspect of the market philosophy will be lost. However, these noise traders bring noise to the market, and the existence of noise in prices indicates a temporary deviation in prices from their fundamental values. In particular, high-fre...

  Background : Noise pollution and workers' noise exposure are common in industrial factories in Iran. In order to reduce this noise pollution, evaluation and investigation of noise emission are both necessary. In this study, different noise mapping methodsare used for determining the distribution of noise.   Materials and Methods : In the present study, for preparing a noise map i...