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Dawid, Herbert; Hellmann, Tim - 2012

In this paper, we study a standard Cournot model where firms are able to form bilateral collaboration agreements which lower marginal cost. While a static analysis of such a model can be found in Goyal and Joshi [5], we introduce an evolutionary model. Stable networks (in the static sense)...

Persistent link: https://www.econbiz.de/10010319993

The Evolution of R&D Networks

Dawid, Herbert - 2012

We study the evolution of R&D networks in a Cournot model where rms may lower marginal costs due to bilateral R&D collaborations. Stochastically stable R&D networks exhibit the dominant group architecture, and, contrary to the existing literature, generically unique predictions about the size of...

Persistent link: https://www.econbiz.de/10013097718

The evolution of R&D networks

Dawid, Herbert; Hellmann, Tim - In: Journal of economic behavior & organization : JEBO 105 (2014), pp. 158-172

Persistent link: https://www.econbiz.de/10010465033

The evolution of R&D networks

Dawid, Herbert; Hellmann, Tim - In: Journal of Economic Behavior & Organization 105 (2014) C, pp. 158-172

We study the evolution of R&D networks in a Cournot model where firms may lower marginal costs due to bilateral R&D collaborations. Stochastically stable R&D networks exhibit the dominant group architecture, and, contrary to the existing literature, generically unique predictions about the size...

Persistent link: https://www.econbiz.de/10011261606

Evolutionary stability in asymmetric oligopoly : a non-Walrasian result

Leininger, Wolfgang; Moghadam, Hamed M. - 2014

It is a very well-known result that in terms of evolutionary stability the long-run outcome of a Cournot oligopoly …. Contrary to Tanaka (1999) we show that the evolutionarily stable price in an asymmetric Cournot oligopoly needs not equal the … order to transform the game with asymmetric firms into a symmetric oligopoly game and then extend Schaffer’s definition …

Persistent link: https://www.econbiz.de/10010399434

On the stability of CSS under the replicator dynamic

Louge, Fernando - 2010

This paper considers a two-player game with a one-dimensional continuous strategy. We study the asymptotic stability of equilibria under the replicator dynamic when the support of the initial population is an interval. We find that, under strategic complementarities, Continuously Stable Strategy...

Persistent link: https://www.econbiz.de/10008736556

On the dynamic foundation of evolutionary stability in continuous models

Oechssler, Joerg; Riedel, Frank - 2000

We show in this paper that none of the existing static evolutionary stability concepts (ESS, CSS, uninvadability, NIS) is sufficient to guarantee dynamic stability in the weak topology with respect to standard evolutionary dynamics if the strategy space is continuous. We propose a new concept,...

Persistent link: https://www.econbiz.de/10011539103

Imitation and the evolution of Walrasian behavior : theoretically fragile but behaviorally robust

Apesteguia, Joe; Huck, Steffen; Oechssler, Joerg; … - 2007

A well-known result by Vega-Redondo implies that in symmetric Cournot oligopoly, imitation leads to the Walrasian …

Persistent link: https://www.econbiz.de/10003593007

R&D investments under endogenous cluster formation

Dawid, Herbert; Hellmann, Tim - 2016

We study investments in R&D and the formation of R&D clusters of firms which are competitors in the market. In a three stage game, firms first decide on long-term R&D investment, then form research clusters according to the unanimity game introduced in Bloch(1995), and finally compete in...

Persistent link: https://www.econbiz.de/10011441020

Multimarket Contact Under Demand Fluctuations : A Limit Result

Sekiguchi, Tadashi - 2013

The present paper studies repeated oligopoly where the firms compete with price in multiple markets. The markets are …

Persistent link: https://www.econbiz.de/10013083703

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