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Year of PublicationTitleAuthor(s)
2011Transport and CO2: Productivity Growth and Carbon Dioxide Emissions in the European Commercial Transport IndustryKrautzberger, Lisann; Wetzel, Heike
2014The hidden cost of investment: The impact of adjustment cost on firm performance measurement and regulationNick, Sebastian; Wetzel, Heike
2017Competition and regulation as a means of reducing CO2 emissions: Experience from U.S. fossil fuel power plantsGrowitsch, Christian; Paulus, Simon; Wetzel, Heike
2016Innovation in clean coal technologies: Empirical evidence from firm-level patent dataKruse, Jürgen; Wetzel, Heike
2014Energy prices,technological knowledge and green energy innovation: A dynamic panel analysis of patent countsKruse, Jürgen; Wetzel, Heike
2013The Impact of Ownership Unbundling on Cost Efficiency: Empirical Evidence from the New Zealand Electricity Distribution SectorFilippini, Massimo; Wetzel, Heike
2014Investigating the influence of firm characteristics on the ability to exercise market power: A stochastic frontier analysis approach with an application to the iron ore marketGermeshausen, Robert; Panke, Timo; Wetzel, Heike
2013The Costs of Power Interruptions in Germany - an Assessment in the Light of the EnergiewendeGrowitsch, Christian; Malischek, Raimund; Nick, Sebastian; Wetzel, Heike
2020Distributed generation and cost efficiency of German electricity distribution network operatorsJust, Lisa; Wetzel, Heike
2010Efficiency effects of quality of service and environmental factors: Experience from Norwegian electricity distributionGrowitsch, Christian; Jamasb, Tooraj; Wetzel, Heike