Search Results - "Achim Wambach"

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Digitaler Wohlstand für alle: Ein Update der Sozialen Marktwirtschaft ist möglich

by Wambach, Achim Müller, Hans Christian
2018

“...DE Inhalt Vorwort 7 1. Ludwig Erhards Politik passt nicht mehr, seine Ideen schon 9 Die Digitalisierung verändert - fast - alles 11 Auf den Märkten von heute...”

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Journal Article

Trust in Procurement Interactions

by Fugger, Nicolas Katok, Elena Wambach, Achim Published in Management science (01.11.2019)

“...When complex procurement projects are conducted, it is often not possible to write complete contracts. As a consequence, the relationship between buyer and...”

Journal Article

Sequential information disclosure in auctions

by Bergemann, Dirk Wambach, Achim Published in Journal of economic theory (01.09.2015)

“...We propose a sequential auction mechanism for a single object in which the seller jointly determines the allocation and the disclosure policy. A sequential...”

Journal Article

Contract withdrawals and equilibrium in competitive markets with adverse selection

by Mimra, Wanda Mimra, Wanda Wambach, Achim Wambach, Achim Published in Economic theory (01.06.2019)

“...In competitive common value adverse selection markets, existence of a pure strategy equilibrium is often justified by appealing to Wilson’s (J Econ Theory...”

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Endogenous Insolvency in the Rothschild–Stiglitz Model

by Mimra, Wanda Wambach, Achim Published in The Journal of risk and insurance (01.03.2019)

“...Even 30 years after Rothschild and Stiglitz's () seminal work on competitive insurance markets with adverse selection, existence and characterization of the...”

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Journal Article

Procurement under public scrutiny: auctions versus negotiations

by Vitali Gretschko Achim Wambach Published in The Rand journal of economics (01.12.2016)

“...We compare two commonly used mechanisms in public procurement: auctions and negotiations. The execution of the procurement mechanism is delegated to an agent...”

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Journal Article

Optimal incentive contracts under inequity aversion

by Englmaier, Florian Wambach, Achim Published in Games and economic behavior (2010)

“...We analyze the classic moral hazard problem with the additional assumption that agents are inequity averse. The presence of inequity aversion alters the...”

Journal Article

A note on uniqueness in game-theoretic foundations of the reactive equilibrium

by Mimra, Wanda Wambach, Achim Published in Economics letters (01.04.2016)

“...Riley (1979)’s reactive equilibrium concept addresses the problem of equilibrium existence in competitive markets with adverse selection. The game-theoretic...”

Journal Article

The fog of fraud – Mitigating fraud by strategic ambiguity

by Lang, Matthias Wambach, Achim Published in Games and economic behavior (01.09.2013)

“...•Insurance fraud model with ambiguity-averse policyholders.•Insurers can choose between commitment and ambiguity about audits.•Insurers avoid commitment and...”

Journal Article

New Developments in the Theory of Adverse Selection in Competitive Insurance

by Wanda Mimra Achim Wambach Published in The Geneva risk and insurance review (01.09.2014)

“...We provide an overview of the paths taken to understand existence and efficiency of equilibrium in competitive insurance markets with adverse selection since...”

Journal Article

Information acquisition during a descending auction

by Vitali Gretschko Achim Wambach Published in Economic theory (01.04.2014)

“...We compare the effects of information acquisition during a descending auction with its static counterpart, the first-price sealed-bid auction. In a framework...”

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Journal Article

Wettbewerbsregeln für das digitale Zeitalter

by Wambach, Achim Published in Wirtschaftsdienst (Hamburg) (01.08.2016)

“...Der Blick auf eine angemessene Wettbewerbsordnung hat sich im Laufe der Jahrzehnte vielfach gewandelt. Dazu trugen sowohl der technologische Wandel als auch...”

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Journal Article

Investment coordination in network industries: the case of electricity grid and electricity generation

by Höffler, Felix Wambach, Achim Published in Journal of regulatory economics (01.12.2013)

“...Liberalization of network industries frequently separates the network from the other parts of the industry. This is important in particular for the electricity...”

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Journal Article

Bid Pooling in Reverse Multi-Unit Dutch Auctions - An Experimental Investigation

by Gillen, Philip Rasch, Alexander Wambach, Achim Werner, Peter Published in Theory and decision (01.11.2016)

“...In this article we experimentally investigate reverse multi-unit Dutch auctions in which bidders compete to sell their single unit to a buyer who wants to...”

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Journal Article

Sektorübergreifende Konzentrations- und Margenzunahme: Bestandsaufnahme, Ursachen und Folgen

by Wambach, Achim Weche, John P Published in Perspektiven der Wirtschaftspolitik : PWP : eine Zeitschrift des Vereins für Socialpolitik (02.07.2020)

“...Achim Wambach und John Weche liefern einen Überblick über den Forschungsstand zur Frage, ob die Wettbewerbsintensität auf Märkten sektorübergreifend abnimmt...”

Journal Article

Internal decision-making rules and collusion

by Rasch, Alexander Wambach, Achim Published in Journal of economic behavior & organization (2009)

“...We study the impact of internal decision-making structures on the stability of collusive agreements. To this end, we use a three-firm spatial competition model...”

Journal Article

Survival at the center—The stability of minimum differentiation

by Hehenkamp, Burkhard Wambach, Achim Published in Journal of economic behavior & organization (2010)

“...We model a Hotelling market with multidimensional product differentiation in an evolutionary framework. Both evolutionary stability (in the sense of Schaffer,...”

Journal Article

In kleinen Schritten zu mehr Wettbewerb auf dem Krankenkassenmarkt

by Greer, Katja Wambach, Achim Published in Perspektiven der Wirtschaftspolitik : PWP : eine Zeitschrift des Vereins für Socialpolitik (30.04.2020)

“...Am 13. März 2020 billigte der Bundesrat das vom Kabinett zuvor beschlossene Gesetz zur zielgenaueren Ausgestaltung des Wettbewerbs im gesetzlichen...”

Journal Article

Das wettbewerbliche Risikopotenzial institutioneller Anleger

by Wambach, Achim Weche, John P Published in Wirtschaftsdienst (Hamburg) (01.08.2019)

“...Weltweit diskutieren Wissenschaftler und Politiker sowie Vertreter von Wettbewerbsbehörden und Finanzmarktregulierern die Bedeutung indirekter...”

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