“…Many studies address the different barriers for "green" retrofits and construction, including (among others) the "landlord-tenant-dilemma" (see, e.g., Rehdanz, 2007;Schleich and Gruber, 2008), insufficient willingness to pay for energy efficiency on real estate markets (see, e.g., Hyland et al, 2013), uncertainty about real energy cost savings (see, e.g., Metcalf and Hassett, 1999) or behavioral aspects, norms and attitudes, that prevent homeowners from investing in "green" technologies (see, e.g., Nair et al, 2010). Research, however, has not focused significantly on understanding the capabilities of different types of investors and the subsequent opportunities these differences offer policymakers in designing strategies for less energy consuming economies.…”