 Jürg Syz, Paolo Vanini, Arbitrage Free Price Bounds for Property Derivatives, The Journal of Real Estate Finance and Economics, Vol. 43 (3), 2011. (Journal Article)
 
Market frictions inhibit the perfect replication of property derivatives, and define the property spread as a price measure in the incomplete real estate market. We identify transaction costs, transaction time, and short sale constraints as the main frictions in this market. Based on these frictions, we set up a framework of arbitrage free price bounds for property derivatives. In turn, we use observed derivative prices to determine the implied cost of the frictions. Lastly, we verify these values by using other research, which confirms the accuracy of our framework. |
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Farrukh Iqbal Sheikh, Helmut Hauser, Lijin Aryananda, Hung Vu Quy, Rolf Pfeifer, SLIP-model-compatible and bio-inspired robotic leg with reconfigurable length, In: The 5th International Symposium on Adaptive Motion of Animals and Machines (AMAM2011), 2011-10-01. (Conference or Workshop Paper published in Proceedings)
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Andreea Oliviana Diaconescu, E Kramer, C Hermann, Y Ma, V Dhawan, T Chaly, D Eidelberg, Anthony Randal McIntosh, Gwenn S Smith, Distinct functional networks associated with improvement of affective symptoms and cognitive function during citalopram treatment in geriatric depression, Human Brain Mapping, Vol. 32 (10), 2011. (Journal Article)
Variability in the affective and cognitive symptom response to antidepressant treatment has been observed in geriatric depression. The underlying neural circuitry is poorly understood. This study evaluated the cerebral glucose metabolic effects of citalopram treatment and applied multivariate, functional connectivity analyses to identify brain networks associated with improvements in affective symptoms and cognitive function. Sixteen geriatric depressed patients underwent resting positron emission tomography (PET) studies of cerebral glucose metabolism and assessment of affective symptoms and cognitive function before and after 8 weeks of selective serotonin reuptake inhibitor treatment (citalopram). Voxel-wise analyses of the normalized glucose metabolic data showed decreased cerebral metabolism during citalopram treatment in the anterior cingulate gyrus, middle temporal gyrus, precuneus, amygdala, and parahippocampal gyrus. Increased metabolism was observed in the putamen, occipital cortex, and cerebellum. Functional connectivity analyses revealed two networks which were uniquely associated with improvement of affective symptoms and cognitive function during treatment. A subcortical-limbic-frontal network was associated with improvement in affect (depression and anxiety), while a medial temporal-parietal-frontal network was associated with improvement in cognition (immediate verbal learning/memory and verbal fluency). The regions that comprise the cognitive network overlap with the regions that are affected in Alzheimer's dementia. Thus, alterations in specific brain networks associated with improvement of affective symptoms and cognitive function are observed during citalopram treatment in geriatric depression |
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Ernst Fehr, Andreas Leibbrandt, A field study on cooperativeness and impatience in the Tragedy of the Commons, Journal of Public Economics, Vol. 95 (9-10), 2011. (Journal Article)
This paper examines the role of cooperativeness and impatience in the exploitation of common pool resources (CPRs) by combining laboratory experiments with field data. We study fishermen whose main, and often only, source of income stems from the use of fishing grounds with open access. The exploitation of a CPR involves a negative interpersonal and inter-temporal externality because individuals who exploit the CPR reduce the current and the future yield both for others and for themselves. Economic theory – which assumes the existence of general across-situational traits – thus predicts that fishermen who exhibit more cooperative and less impatient behavior in the laboratory should be less likely to exploit the CPR, which our findings confirm. We thus corroborate the economic theory and extend the scope of other-regarding preference theories to crucial economic decisions with lasting consequences for the people involved. In addition, we establish cooperativeness and impatience as two distinct traits related to resource conservation in the field and validate laboratory preference measures. |
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Martin Waldburger, System Dynamics Modeling of the Transition to a Harmonized Private International Law for E-Business, In: COST ISO605 STSM. 2011. (Conference Presentation)
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Owen Holland, Hugo Gravato Marques, Functional embodied imagination and episodic memory, In: Biologically Inspired Cognitive Architectures-II AAAI, Washington DC, USA, 2011. (Conference or Workshop Paper published in Proceedings)
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Helmut Max Dietl, Die Perspektiven des chinesischen Profifussballs, Schweizerische Nationalbank, Weblogs @ iconomix.ch, http://www.iconomix.ch/de/blog/486-die-perspektiven-des-chinesischen-profifussballs/, 2011-09-29. (Scientific Publication In Electronic Form)
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Thorsten Hens, Three Solutions to the Pricing Kernel Puzzle, In: Research Seminar. 2011. (Conference Presentation)
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Monika Seps, Konstantinos Dermitzakis, Alejandro Hernandez Arieta, Study on lower back electrotactile characteristics for prosthetic sensory feedback, In: IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS '11), San Francisco, USA, 2011. (Conference or Workshop Paper)
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Hidenobu Sumioka, Helmut Hauser, Rolf Pfeifer, Computation with mechanically coupled springs for compliant robots, In: IEEE/RSJ International Conference on Intelligent Robots and Systems, IEEE, USA, 2011-09-25. (Conference or Workshop Paper published in Proceedings)
We introduce a simple model of human’s musculoskeletalsystem to identify the computation that a compliantphysical body can achieve. A one-joint system driven by actuationof the springs around the joint is used as a computationaldevice to compute the temporal integration and nonlinearcombination of an input signal. Only a linear and static readoutunit is needed to extract the output of the computation. Theresults of computer simulations indicate that the network ofmechanically coupled springs can emulate several nonlinearcombinations which need temporal integration. The simulationwith a two-joint system also shows that, thanks to mechanicalconnection between the joints, a distant part of a compliantbody can serve as a computational device driven by the indirectinput. Finally, computational capability of antagonistic musclesand information transfer through mechanical couplings arediscussed. |
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Steffen Wittmeier, Michael Jäntsch, Konstantinos Dalamagkidis, Markus Rickert, Hugo Gravato Marques, Alois Knoll, Caliper: A universal robot simulation framework for tendon-driven robots, In: IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), IEEE, San Francisco, CA, USA, 2011-09-25. (Conference or Workshop Paper published in Proceedings)
The development of increasingly complex robots in recent years has been characterized by an extensive use of physics-based simulations for controller design and optimization. Today, a variety of open-source and commercial simulators exist for this purpose for mobile and industrial robots. However, existing simulation engines still lack support for the emerging class of tendon-driven robots. In this paper, an innovative simulation framework for the simulation of tendon-driven robots is presented. It consists of a generic physics simulator capable of utilizing CAD robot models and a set of additional tools for simulation control, data acquisition and system investigation. The framework software architecture has been designed using component-based development principles to facilitate the framework extension and customization. Furthermore, for inter-component communication, the operating-system and programming language independent Common Object Request Broker Architecture (CORBA) [1] has been used which simplifies the integration of the framework into existing software environments. |
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Robertas Zubrickas, Managerial accountability for payroll expense and firm-size wage effects, In: EALE, 23rd Annual Conference, 2011-09-22. (Conference or Workshop Paper published in Proceedings)
We argue that job performance appraisal is an agency problem with asymmetric transfer values: an employee is paid in proportion to the rating received from his line manager, who only partially internalizes the resultant payroll cost. This asymmetry in rating valuations is based on evidence that managers are not fully accountable for payroll expense, with the degree of unaccountability increasing in firm size. We develop a nested agency model of economic organization of a firm with unaccountable managers, which in equilibrium obtains the firm-size wage effects - the large-firm wage premium and inverse relationship between firm size and wage dispersion. |
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Simon Janssen, Uschi Backes-Gellner, Occupational stereotypes, gender segregation and job satisfaction, In: EALE, 2011-09-22. (Conference or Workshop Paper)
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Andrea Schenker-Wicki, Der österreichische Hochschulplan, In: ÌZU. 2011. (Conference Presentation)
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Dietrich Christopeit, Michael Böhlen, Carl-Christian Kanne, Arturas Mazeika, Querying versioned software repositories, In: 15th international conference on Advances in databases and information systems, Springer, 2011-09-20. (Conference or Workshop Paper published in Proceedings)
Large parts of today’s data is stored in text documents that undergo a series of changes during their lifetime. For instance during the development of a software product the source code changes frequently. Currently, managing such data relies on version control systems (VCSs). Extracting information from large documents and their different versions is a manual and tedious process. We present Qvestor, a system that allows to declaratively query documents. It leverages information about the structure of a document that is available as a context-free grammar and allows to declaratively query document versions through a grammar annotated with relational algebra expressions. We define and illustrate the annotation of grammars with relational algebra expressions and show how to translate the annotations to easy to use SQL views. |
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Patrick Gwydion Poullie, Efficient Methods for Optimal Routing in Certain Networks, In: Master Thesis Presentation. 2011. (Conference Presentation)
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Christian Tilgner, Boris Glavic, Michael Böhlen, Carl-Christian Kanne, Declarative serializable snapshot isolation, In: 15th International Conference in Advances in Databases and Information Systems, Springer, 2011-09-19. (Conference or Workshop Paper published in Proceedings)
Snapshot isolation (SI) is a popular concurrency control protocol, but it permits non-serializable schedules that violate database integrity. The Serializable Snapshot Isolation (SSI) protocol ensures (view) serializability by preventing pivot structures in SI schedules. In this paper, we leverage the SSI approach and develop the Declarative Serializable Snapshot Isolation (DSSI) protocol, an SI protocol that guarantees serializable schedules. Our approach requires no analysis of application programs or changes to the underlying DBMS. We present an implementation and prove that it ensures serializability. |
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Michael Fischbach, Thomas Puschmann, Rainer Alt, Towards an Interdisciplinary View on Service Science The Case of the Financial Services Industry, In: Federated Conference on Computer Science and Information Systems (FEDCIS11) , Szczecin, 2011. (Conference or Workshop Paper published in Proceedings)
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Christian Ewerhart, Overbidding in fixed-rate tenders: on the role of exposure risk, In: "The post-crisis design of the operational framework for the implementation of monetary policy". 2011. (Conference Presentation)
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Anja Feierabend, Produktivitätsbremse Knowledge-Hiding, In: NZZ, 217, p. 79, 17 September 2011. (Newspaper Article)
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