Search Results - "Kempf, Alexander"

The Effect of Socially Responsible Investing on Portfolio Performance by Kempf, Alexander, Osthoff, Peer

“…More and more investors apply socially responsible screens when building their stock portfolios. This raises the question whether these investors can increase…”
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Sensitivity of multispecies maximum sustainable yields to trends in the top (marine mammals) and bottom (primary production) compartments of the southern North Sea food-web by Stäbler, Moritz, Kempf, Alexander, Smout, Sophie, Temming, Axel

“…In marine ecosystems, maximum sustainable yield considerations are affected by any substantial changes that occur in the top and bottom compartments of the…”
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Spatially-Resolved Influence of Temperature and Salinity on Stock and Recruitment Variability of Commercially Important Fishes in the North Sea by Akimova, Anna, Núñez-Riboni, Ismael, Kempf, Alexander, Taylor, Marc H

“…Understanding of the processes affecting recruitment of commercially important fish species is one of the major challenges in fisheries science. Towards this…”
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DEF of high-performance concrete with rapid, non-standard heat-treatment by Stindt, Jan, Kempf, Luca-Alexander, Forman, Patrick, Breitenbücher, Rolf, Mark, Peter

“…High-performance concrete is often heat-treated to increase early strength. Standardized temperature conditions for at least 24 h and sulphate-resistant cement…”
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SRI Funds: Nomen est Omen by Kempf, Alexander, Osthoff, Peer

“…:  We test the frequently made claim that SRI funds are conventional funds in disguise. For this purpose, we compare the portfolio holdings of SRI funds to…”
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Combining efforts to make maximum sustainable yields and good environmental status match in a food-web model of the southern North Sea by Stäbler, Moritz, Kempf, Alexander, Mackinson, Steven, Poos, Jan Jaap, Garcia, Clement, Temming, Axel

“…•We parameterized an ecosystem model of the southern North Sea.•We sought for fishing effort regimes that would provide multispecies MSYs.•It was impossible to…”
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Tin-functionalized silicon oxycarbide as a stable, high-capacity anode material for Na-ion batteries by Kempf, Alexander, Kiefer, Samira, Graczyk-Zajac, Magdalena, Ionescu, Emanuel, Riedel, Ralf

“…In this study tin-functionalized silicon oxycarbide, Sn/SiOC, composite anode materials are synthesized using a carbon-rich polysiloxane as the preceramic…”
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Surgical Treatment Concepts for Acute Lower Gastrointestinal Bleeding by Czymek, Ralf, Kempf, Alexander, Roblick, Uwe Johannes, Bader, Franz Georg, Habermann, Jens, Kujath, Peter, Bruch, Hans-Peter, Fischer, Frank

“…Background and purpose To this day, the diagnostic and therapeutic strategy for acute lower gastrointestinal hemorrhage requiring transfusion varies among…”
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Optimizing the acid resistance of concrete with granulated blast-furnace slag by Kempf, Luca-Alexander, Breitenbücher, Rolf, Gerten, Christian, Ehrenberg, Andreas

“…Concrete structures exposed to high levels of chemical attacks are assigned to exposure class XA3, which recommends separate concrete protection or a special…”
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Tournaments in Mutual-Fund Families by Kempf, Alexander, Ruenzi, Stefan

“…We examine intrafirm competition in the mutual-fund industry. We test the hypothesis that fund managers within mutual-fund families compete with each other in…”
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Development of a Mechanical Technology for Joining Sandwich Elements by Feldhusen, Jörg, Warkotsch, Christoph, Kempf, Alexander

“…Wide spread use of sandwich structures is still inhibited by the lack of a consistent joining technology one which is easy to work with, quantifiable and not…”
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Investor sentiment, flight-to-quality, and corporate bond comovement by Bethke, Sebastian, Gehde-Trapp, Monika, Kempf, Alexander

“…We examine the dynamics of bond correlation using a broad sample of US corporate bonds, and document that bond correlation varies heavily over time. We…”
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Knowledge spillovers in the mutual fund industry through labor mobility by Cici, Gjergji, Kempf, Alexander, Peitzmeier, Claudia

“…Firms’ competitive advantages are unsustainable when competitors hire their employees away to study and recreate those advantages. We document inter-firm…”
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The impact of labor mobility restrictions on managerial actions: Evidence from the mutual fund industry by Cici, Gjergji, Hendriock, Mario, Kempf, Alexander

“…We examine how labor mobility restrictions in the form of non-compete clauses in employment contracts affect employee behavior. Using the mutual fund industry…”
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The Cross-Section of German Stock Returns: New Data and New Evidence by Artmann, Sabine, Finter, Philipp, Kempf, Alexander, Koch, Stefan, Theissen, Erik

“…We introduce a new data set that comprises factor returns and returns of portfolios that are single- and double-sorted. We use this data set to perform…”
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Employment risk, compensation incentives, and managerial risk taking: Evidence from the mutual fund industry by Kempf, Alexander, Ruenzi, Stefan, Thiele, Tanja

“…We examine the influence on managerial risk taking of incentives due to employment risk and due to compensation. Our empirical investigation of the risk taking…”
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Trading efficiency of fund families: Impact on fund performance and investment behavior by Cici, Gjergji, Dahm, Laura K., Kempf, Alexander

“…This study examines how the efficiency of trading desks operated by mutual fund families affects portfolio performance and investment behavior of affiliated…”
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The uncertain future of the Norway lobster fisheries in the North Sea calls for new management strategies by Letschert, Jonas, Stollberg, Nicole, Rambo, Henrike, Kempf, Alexander, Berkenhagen, Jörg, Stelzenmüller, Vanessa

“…Abstract Nephrops (Nephrops norvegicus) is an economically valuable target species in the North Sea. Although individual Nephrops populations are scattered,…”
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The Valuation of Hedge Funds’ Equity Positions by Cici, Gjergji, Kempf, Alexander, Puetz, Alexander

“…We provide evidence on the valuation of equity positions by hedge funds. Reported valuations deviate from standard valuations based on closing prices from the…”
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Eastern European gaming cultures. Case studies: Romania and Bulgaria by Ţăruş, Adriana, Policov, Elena, Kempf, Alexander, Yordanova, Lyuba

“…Digital games are a complex social and technological phenomenon that is situated in cultures and societies. Current academic efforts in the field of digital…”
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