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Institutional Authority and Collusion

Peer-reviewed journal articles
Axel Sonntag, Daniel John Zizzo
Sounthern Economic Journal 82 (1), 13–37, doi: 10.1002/soej.12065
Publication year: 2015

A “collusion puzzle” exists by which, even though increasing the number of firms reduces the ability to tacitly collude, and leads to a collapse in collusion in experimental markets with three or more firms, in natural markets there are such numbers of firms colluding successfully. We present an experiment showing that, if managers are deferential toward an authority, firms can induce more collusion by delegating production decisions to middle managers and providing suitable informal nudges. This holds not only with two but also with four firms. We are also able to distinguish compliance effects from coordination effects.

Contribution of an Emission Trading Scheme to Reduce Road Traffic Induced CO2 Emissions in Austria

Other publications
Christoph Link, Juliane Stark, Axel Sonntag, Reinhard Hössinger
Procedia - Social and Behavioral Sciences 48 (January): 1971–82. doi:10.1016/j.sbspro.2012.06.1170.
Publication year: 2012

The Emission Trading Scheme for green house gases is a key too of European climate protection. Including the road transport sector might be a promising strategy to limit its CO2 emissions. This could be realized within a common market (trans-sectoral trading permitted) or separated markets (trans-sectoral trading not permitted). Starting from different assumptions on emission deduction objectives, the impact of both options is analysed using a quantitative model. Although an emission trading scheme is ecologically effective regardless of the trading model, it turns out that CO2 emissions and emission allowance prices differ strongly between both design options due to sector specific price elasticities of allowance demand.

Choosing between technological options in climate policy: pitfalls in assessing their efficiency

Book chapters
Axel Sonntag, Uwe Schubert
In: Wirtschaft-Gesellschaft-Natur, Eds. Schubert, U., Pinter, D., Marburg: Metropolis-Verlag, 419-434.
Publication year: 2011

Klimapolitik ganzheitlich denken

Other publications
Schuber, Uwe Sonntag, Axel
Ökologisches Wirtschaften, 24 (2), 47-50
Publication year: 2009

Die aktuelle Klima- und Energiepolitik ist stets auf der Suche nach effektiven Maßnahmen und technischen Lösungsansätzen zum Klimaschutz. Nicht selten werden bei der Umsetzung dieser Lösungen aber zusätzliche Emissionen verursacht. Durch die Analyse von Kohlenstoffdioxid-Vermeidungskosten können Klimaschutzmaßnahmen auf gesamtwirtschaftlicher Ebene bewertet werden

Perspektiven zur Reduktion des Erdölverbrauchs im österreichischen Straßenverkehr

Other publications
Sonntag, Axel
SAFRAN - Schlaininger Arbeitspapiere für Friedensforschung, Abrüstung und nachhaltige Entwicklung, 4, 85-100
Publication year: 2008