The basic form of efficient market hypothesis postulates that publicly available information is incorporated into stock prices. The stronger form of the hypothesis asserts that all information are immediately reflected in the market as soon as they become available; whereas the weaker form allows a certain lag period in which the information is digested by the public and stock prices move gradu...

While unprotected sexual intercourse and the use of contaminated injection equipment account for the majority of HIV infections worldwide, other routes of HIV transmission have received less attention. We report on a case of HIV transmission attributable to illicit drug market violence involving a participant in a prospective cohort study of injection drug users. Data from a qualitative intervi...

Market value for nascent goods and services cannot be discovered in a laboratory. Scientists in lab coats cannot distill it from interviewing potential customers and vendors. It can be discovered only through market experience. Does concentrated commercial leadership or dispersed commercial leadership more efficaciously explore value? Concentrated or dispersed commercial leadership describes wh...

To evaluate the public opinion expression of occupying Wall Street on Twitter, this paper aims to investigate time series of tweet stream, search query, media coverage, stock market, and opinion polls. The findings reveals that: first, the dynamic change of total tweet stream, retweets, discussions, and hashtags are parallel; second, tweet stream and search query are strongly correlated, while ...

Objective To analyze the health needs of street market saleswomen of the Mercado Público (Public Market) of a municipality in Northeastern Brazil. Method Qualitative, exploratory and descriptive study, with fifteen saleswomen in a public market. Data production means included semi-structured interviews, April-May 2016. Results Data were analyzed using the analysis of technical content techn...

This paper examines alternative approaches to wage subsidy programs. It does this in the context of a recent active labour market reform for the young unemployed in Britain. This “New Deal” reform and the characteristics of the target group are examined in detail. We discuss theoretical considerations, survey the existing empirical evidence and propose two strategies for evaluation. The first s...

This project applies agent-based modeling (ABM) techniques to better understand the operation, organization, and structure of a local heroin market. The simulation detailed was developed using data from an 18-month ethnographic case study. The original research, collected in Denver, CO during the 1990s, represents the historic account of users and dealers who operated in the Larimer area heroin...

Dr. Melnick is President of the National Board of Medical Examiners; Dr. Dillon is Associate Vice President, USMLE, National Board of Medical Examiners; and Dr. Swanson is Associate Vice President, Test Development Services, National Board of Medical Examiners. Direct correspondence to Dr. Melnick at the National Board of Medical Examiners, 3750 Market Street, Philadelphia, PA 19104; 215-590-95...

a Research Centre for Education and the Labour Market (ROA), Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands b Centre for Economic Performance (CEP), London School of Economics, Houghton Street, WC2A 2AE London, United Kingdom c Department of Economics, Universitat de Girona, 17071, Spain d Research Centre for Economy and Health (CRES), Universitat Pompeu Fabra, Ramon T...

This feature explores the operation of individual markets. Patterns of behavior in markets for specific goods and services offer lessons about the determinants and effects of supply and demand, market structure, strategic behavior, and government regulation. Suggestions for future columns and comments on past ones should be sent to James R. Hines Jr., c/o Journal of Economic Perspectives, Depar...