This dissertation consists of three chapters that study issues in Corporate Finance and Industrial Organization related to the behavior of markets with asymmetric information. The first two chapters study the economics of credit rating agencies; the third chapter examines a process of social learning about product quality. Chapter 1 models the effect of rating agency competition on the quality ...

Proteomics, the study of the protein complement of a biological system, is generating increasing quantities of data from rapidly developing technologies employed in a variety of different experimental workflows. Experimental processes, e.g. for comparative 2D gel studies or LC-MS/MS analyses of complex protein mixtures, involve a number of steps: from experimental design, through wet and dry la...

This Issue Brief series is supported under contract # HHSP233200500198U to Child Trends from the Office of Planning, Research and Evaluation, Administration for Children and Families, U.S. Department of Health and Human Services, under the direction of project officer Ivelisse Martinez-Beck. Support is also provided by the Office of the Assistant Secretary for Planning and Evaluation, U.S. Depa...

Information quality has been proposed as one of the determining factors for perceived information system success. Fehrenbacher and Helfert have studied contextual factors of information system use (e.g. different user types, types of business activities supported, etc.) that influence the perceived importance and the trade-offs of information quality criteria. In this paper, we will use their f...

In it tetter dated January 30, 2003, EPA denied the Chemical Products Corporation’s (CPC) Request for Correction of EPA’s IRIS Barium ahd Compounds Substance File (Request Number IQG# 2293), filed under the Information Quality Act on October 29, 2002. EPA rejected CPC’s request on the grounds that the request “offers an alternative assessment of the relevant science but fails to demonstrate tha...

The importance of quality is widely acknowledged throughout the world, not only for avoiding failure and reducing costs but also for gaining competitive advantage. This article reflects on two approaches of quality management that have gained popularity during the last decades: Total Quality Management (TQM) and Information Quality Management (IQM). The goal of this study is to illustrate the l...

When a new system, such as a knowledge management system or a content management system is put into production, both the software and hardware are systematically and thoroughly tested while the main purpose of the system — the information — often lacks systemic testing. In this paper we study how to extend testing approaches from software and hardware development to information engineering. We ...

N t This is one of a series of information sheets prepared for each country in which WaterAid works. The sheets aim to identify inorganic constituents of significant risk to health that may occur in groundwater in the country in question. The purpose of the sheets is to provide guidance to WaterAid Country Office staff on targeting efforts on water-quality testing and to encourage further think...

information disclosure and quality of their presentation are affected by a lot of environmental and organizational factors that organizational culture is one of the most important. responsible organization culture creates a dynamic information environment and helps the quality of information disclosure. accordingly, the aim of this study was to evaluate the impact of organizational culture on t...

Background: The Internet has become the most widely-used source for patients seeking information more about their health and many sites geared towards this audience have gained widespread use in recent years. Additionally, many healthcare institutions publish their own patient-education web sites with information regarding common conditions. Little is known about how these resources impact pati...