Results 1 - 10 of 869

Remedying Education: Evidence from Two Randomized Experiments

by Abhijit V. Banerjee, Shawn Cole, Esther Duflo, Leigh Linden - in India,” NBER Working Paper , 2005
"... This paper presents the results of two randomized experiments conducted in schools in urban India. A remedial education program hired young women to teach students lagging behind in basic literacy and numeracy skills. It increased average test scores of all children in treatment schools by 0.28 stan ..."
Abstract - Cited by 317 (37 self) - Add to MetaCart
standard deviation, mostly due to large gains experienced by children at the bottom of the test-score distribution. A computer-assisted learning program focusing on math increased math scores by 0.47 standard deviation. One year after the programs were over initial gains remained significant for targeted

Whom You Know Matters: Venture Capital Networks and Investment Performance,

by Yael Hochberg , Alexander Ljungqvist , Yang Lu , Steve Drucker , Jan Eberly , Eric Green , Yaniv Grinstein , Josh Lerner , Laura Lindsey , Max Maksimovic , Roni Michaely , Maureen O'hara , Ludo Phalippou Mitch Petersen , Jesper Sorensen , Per Strömberg Morten Sorensen , Yael Hochberg , Johnson - Journal of Finance , 2007
"... Abstract Many financial markets are characterized by strong relationships and networks, rather than arm's-length, spot-market transactions. We examine the performance consequences of this organizational choice in the context of relationships established when VCs syndicate portfolio company inv ..."
Abstract - Cited by 138 (8 self) - Add to MetaCart
Capital, Networks, Syndication, Investment Performance JEL classification: G24, L14. Networks are widespread in many financial markets. Bulge-bracket investment banks, for instance, have strong relationships with institutional investors which they make use of when pricing and distributing corporate

Cassandra: flexible trust management, applied to electronic health records

by Moritz Y. Becker, Peter Sewell - In 17th IEEE Computer Security Foundations Workshop (CSFW , 2004
"... We study the specification of access control policy in large-scale distributed systems. We present Cassandra, a language and system for expressing policy, and the results of a substantial case study, a security policy for a national Electronic Health Record system, based on the requirements for the ..."
Abstract - Cited by 128 (11 self) - Add to MetaCart
for the ongoing UK National Health Service procurement exercise. Cassandra policies are expressed in a language based on Datalog with constraints. The expressiveness of the language (and its computational complexity) can be tuned by choosing an appropriate constraint domain. Cassandra is role-based; it supports

Materials for an exploratory theory of the network society.

by Manuel Castells , Anthony Giddens , Alain Touraine , Anthony Smith , Benjamin Barber , Peter Hall , Roger-Pol Droit , Sophie Watson , Frank Webster , Krishan Kumar , David Lyon , Craig Calhoun , Jeffrey Henderson , Ramon Ramos , Jose E Rodrigues-Ibanez , Jose F Tezanos , Mary Kaldor , Stephen Jones , Christopher Freeman - The British Journal of Sociology , 2000
"... ABSTRACT This article aims at proposing some elements for a grounded theor y of the network society. The network society is the social structure characteristic of the Information Age, as tentatively identi ed by empirical, cross-cultural investigation. It permeates most societies in the world, in v ..."
Abstract - Cited by 122 (0 self) - Add to MetaCart
engineering. It replaces/subsumes the technological paradigm of the Industrial Age, organized primarily around the production and distribution of energy. In this article I aim at clarifying the theoretical implications that can be induced from my observation of contemporary social structures and social change

Market-Oriented Programming: Some Early Lessons

by Michael P. Wellman , 1995
"... As the other chapters in this volume attest, the market-based approach offers a useful way to conceptualize and analyze distributed control problems, as well as to design and implement actual distributed control systems. For the past few years, I have been exploring this approach not only as a metho ..."
Abstract - Cited by 103 (7 self) - Add to MetaCart
methodology for solving particular distributed control problems, but also as a generic programming paradigm for the development of distributed systems based on these methods. By a programming paradigm, I mean that the exercise of defining a computational market leads to the specification of a procedural

Self-concordance at work: Toward understanding the motivational effects of transformational leaders.

by Joyce E Bono , Timothy A Judge - Academy of Management Journal, , 2003
"... We extend existing theories by linking transformational leadership to "self-concordance" at work. In two studies using diverse samples and methods, leader behaviors were associated with follower tendencies to set self-concordant goals. In general, followers of transformational leaders vie ..."
Abstract - Cited by 113 (3 self) - Add to MetaCart
were distributed to followers, who passed them along to a significant other. Completed surveys were returned to the authors, and all individual responses were confidential, although summary reports were provided to leaders and organization executives. Measures Leadership. Transformational leadership

Mathematical comparison of combat computer models to exercise data

by Lester Ingber, Hirome Fujio, Michael F. Wehner - Mathl. Comput. Modelling , 1991
"... The powerful techniques of modern nonlinear statistical mechanics are used to compare battalion-scale combat computer models (including simulations and wargames) to exercise data. This is necessary if large-scale combat computer models are to be extrapolated with confidence to develop battle-managem ..."
Abstract - Cited by 36 (33 self) - Add to MetaCart
-time probability distributions spanning the combat scenario. We hav e demonstrated proofs of principle, that battalion-level combat exercises can be well represented by the computer simulation JANUS(T), and that modern methods of nonlinear nonequilibrium statistical mechanics can well model these systems. Since

Reading Computer Programs: Instructor’s Guide and Exercises

by Lionel E. Deimel, Fernando Naveda, Lionel E. Deimel, J. Fernando Naveda, John S. Herman , 1990
"... Distribution unlimited. ..."
Abstract - Cited by 11 (1 self) - Add to MetaCart
Distribution unlimited.

Distributed Interactive Simulation For Group-Distance Exercises On The Web

by Erik Berglund, Henrik Eriksson - In Proceedings of the 1998 International Conference on Web-Based Modeling & Simulation , 1998
"... In distributed-interactive simulation (DIS), simulators act as elements of a bigger distributed simulation. A groupdistance exercise (GDE) based on the DIS approach can therefore enable group training for group members participating from different locations. Our GDE approach, unlike full-scale DIS s ..."
Abstract - Cited by 7 (1 self) - Add to MetaCart
In distributed-interactive simulation (DIS), simulators act as elements of a bigger distributed simulation. A groupdistance exercise (GDE) based on the DIS approach can therefore enable group training for group members participating from different locations. Our GDE approach, unlike full-scale DIS

The main name system: an exercise in centralized computing

by Jon Crowcroft, Andrew Warfield, Mark Crovella, Tim Deegan, Tim Deegan - Computer Communications Review , 2005
"... (DNS). Dr. Mockapetris deserves considerable credit, because DNS has been an incredibly successful component of the Internet; it hasn’t required major changes despite scaling up many orders of magnitude from its original size. DNS has been recognized as achieving a remarkable balance between scalabi ..."
Abstract - Cited by 5 (1 self) - Add to MetaCart
scalability (due to its distributed implementation) and decentralized administrative control, in which separate organizations control separate portions of the namespace. So why consider changing it? More to the point, why should CCR publish a paper proposing a radical redesign of the DNS? This paper proposes
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