Results 1 - 10 of 404

Innovating Firms and Aggregate Innovation

by Tor Jakob Klette, Samuel Kortum , 2002
"... We develop a parsimonious model of innovating firms rich enough to confront firm-level evidence. It captures the dynamic behavior of individual heterogenous firms, describes the evolution of an industry with simultaneous entry and exit, and delivers a general equilibrium model of technological chang ..."
Abstract - Cited by 220 (2 self) - Add to MetaCart
change. While unifying the theoretical analysis of firms, industries, and the aggregate economy, the model yields insights into empirical work on innovating firms. It accounts for the persistence over time of firms ’ R&D investment, the concentration of R&D among incumbent firms, and the link

How Broadcasting Quotas Harm Program Diversity Mathieu Perona∗

by unknown authors , 2010
"... Broadcasting quotas of domestic contents are commonplace in developed countries, be it for radio or television programming. The core argument for them is to promote diversity by making more room for domestic content. By doing so, they increase the sales of domestic content and hence foster a more di ..."
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, our setup concurs with the idea that competition between broadcasters also reduces diversity of programming compared with a similar situation un-der monopoly. Using a Stackelberg competition framework, we show that the incumbent broadcaster concentrates on the most popular genres. Since they affect

Institutional transitions and strategic choices

by Mike W. Peng - Academy of Management Review
"... How do organizations make strategic choices during the time of fundamental institutional transitions such as those sweeping numerous emerging economies? To answer this question, a two-phase model of institutional transitions is developed in this article. I focus on the longitudinal process to move f ..."
Abstract - Cited by 196 (50 self) - Add to MetaCart
from a relationship-based, personalized transaction structure calling for a network-centered strategy to a rule-based. Impersonal exchange regime suggesting a market-centered strategy. I then identify the points of inflection; predict strategic choices for incumbent, entrepreneurial, and foreign firms

A Shared Incumbent Environment for the Minimum Power Broadcasting Problem in Wireless Networks

by N E Toklu , R Montemanni , G Di Caro , L M Gambardella
"... Abstract. In this study, we consider the minimum power broadcasting problem in wireless actuator networks. We attack the problem with a method -the shared incumbent environment -that executes two algorithms in parallel: a mathematical programming approach and a simulated annealing approach. Accordi ..."
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Abstract. In this study, we consider the minimum power broadcasting problem in wireless actuator networks. We attack the problem with a method -the shared incumbent environment -that executes two algorithms in parallel: a mathematical programming approach and a simulated annealing approach

Digital Terrestrial Broadcasting: Innovation and Development or a Tragedy for Incumbents

by Reza Tadayoni - Communications & Strategies , 2001
"... This paper presents an analysis of the degree to which it is justifiable to deploy radio spectrum resources allocated to TV broadcasting for the purpose of transmitting digital TV services. This problem, among others, is analysed in the light of the level of deployment of two major broadcasting ..."
Abstract - Cited by 1 (0 self) - Add to MetaCart
This paper presents an analysis of the degree to which it is justifiable to deploy radio spectrum resources allocated to TV broadcasting for the purpose of transmitting digital TV services. This problem, among others, is analysed in the light of the level of deployment of two major broadcasting

Deterministic Broadcasting in Unknown Radio Networks

by Bogdan S. Chlebus, Leszek Gasieniec, Alan Gibbons, Andrzej Pelc, Wojciech Rytter , 2000
"... We consider the problem of distributed deterministic broadcasting in radio networks of unknown topology and size. The network is synchronous. If a node u can be reached from two nodes which send messages in the same round, none of the messages is received by u. Such messages block each other and nod ..."
Abstract - Cited by 75 (24 self) - Add to MetaCart
. The initial knowledge of every node is limited to its own label. We study the time of deterministic broadcasting under this total ignorance scenario. Previous research has concentrated on distributed randomized broadcasting algorithms working for unknown networks, and on deterministic off-line broadcasting

Who Says What to Whom on Twitter

by Shaomei Wu, Winter A. Mason , 2011
"... We study several longstanding questions in media communications research, in the context of the microblogging service Twitter, regarding the production, flow, and consumption of information. To do so, we exploit a recently introduced feature of Twitter known as “lists ” to distinguish between elite ..."
Abstract - Cited by 136 (7 self) - Add to MetaCart
users—by which we mean celebrities, bloggers, and representatives of media outlets and other formal organizations—and ordinary users. Based on this classification, we find a striking concentration of attention on Twitter, in that roughly 50 % of URLs consumed are generated by just 20K elite users, where

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
. To the extent that VC networks are geographically concentrated or industry-specific, this may underestimate a VC's network centrality. We therefore repeat our analysis using industry-specific networks and a separate network of VC firms in California, the largest VC market in the U.S. Our results

A theory of broadcast media concentration and commercial advertising

by C. Cunningham, Peter J. Alex, Brendan M. Cunningham, Peter J. Alex - Journal of Public Theory , 2004
"... We analyze a model in which the interaction of broadcasters, advertisers, and consumers determines the level of non-advertising broadcasting produced and consumed. Our main finding is that an increase in concentration in broadcast media industries may lead to a decrease in the total amount of non-ad ..."
Abstract - Cited by 11 (0 self) - Add to MetaCart
We analyze a model in which the interaction of broadcasters, advertisers, and consumers determines the level of non-advertising broadcasting produced and consumed. Our main finding is that an increase in concentration in broadcast media industries may lead to a decrease in the total amount of non

Broadcast Centre

by unknown authors
"... As storage costs drop, storage is becoming the lowest cost in a digital repository – and the biggest risk. We examine current modelling of costs and risks in digital preservation, concentrating on the Total Cost of Risk when using digital storage systems for preserving audiovisual material. We prese ..."
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As storage costs drop, storage is becoming the lowest cost in a digital repository – and the biggest risk. We examine current modelling of costs and risks in digital preservation, concentrating on the Total Cost of Risk when using digital storage systems for preserving audiovisual material. We
Results 1 - 10 of 404