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121 documents, page 1 of 13

Measuring Economic and Institutional Integration

Nitsch, Volker; Berger, Helge (2015)
[Introduction] A quantitative assessment of the level of integration among geographic units (such as regions, states or countries) is of interest to a wide range of audiences. Policy-makers, for instance, may want to identify barriers to cross-regional interaction. José Manuel Barroso (2009, p. 28), the then President of the European Commission, provides an illustrative example; in the political guidelines for his second term as the head of the Commission he notes: “I intend to launch a major...

Classification of network formation models

Moebert, Jochen (2006)
Social network formation models are often compared by their network structures, which satisfy specific equilibrium or welfare properties. Here, we concentrate on welfare criteria and define properties of utility function which are causal for certain network structures. We hope the identification of different properties of utility function will enhance the understanding of the relationship of different network formation models. If this line of research is continued, a kind of engineering of ne...

Sicherungsverwahrung in Deutschland: Theoretische Überlegungen und deskriptive Datenanalyse

Möbert, Jochen; Meyer, Susanne (2006)
Dieser Artikel stellt theoretische Argumente und empirische Fakten der in Sicherungsverwahrung befindlichen Inhaftierten in Deutschland dar. Zudem gibt er einen kurzen Überblick über relevante Gesetzesinhalte sowie eine kurze Zusammenfassung über die Geschichte der Sicherungsverwahrung in Deutschland. Wir legen dar, dass zur Vereinheitlichung der wissenschaftlichen Diskussion eine Formalisierung von Begriffen zumindest für die wissenschaftliche kriminologische Diskussion Vorteile brächte. Die...

Investors Facing Risk: Loss Aversion and Wealth Allocation Between Risky and Risk-Free Assets

Rengifo, Erick W.; Trifan, Emanuela (2006)
This paper studies the impact of loss aversion on decisions regarding the allocation of wealth between risky and risk-free assets. We use a Value-at-Risk portfolio model with endogenous desired risk levels that are individually determined in an extended prospect theory framework. This framework allows for the distinction between gains and losses with respect to a subjective reference point as in the original prospect theory, but also for the influence of past performance on the current percep...

Meta analysis of empirical deterrence studies: an explorative contest

Rupp, Thomas (2006)
A sample of 200 studies empirically analyzing deterrence in some way is evaluated. Various methods of data mining (stepwise regressions, Extreme Bounds Analysis, Bayesian Model Averaging, manual and naive selections) are used to explore different influences of various variables on the results of each study. The preliminary results of these methods are tested against each other in a competition of methodology to evaluate their performance in forecasting and fitting the data and to conclude whi...

Direct Targeting of Efficient DMUs for Benchmarking

Krüger, Jens J. (2016)
We propose a two-stage procedure for finding realistic benchmarks for nonparametric efficiency analysis. On the first stage the efficient DMUs are figured out by a free disposal hull approach. These benchmarks are directly targeted by directional distance functions and the extent of inefficiency is measured along the direction towards an existing DMU. Two variants for finding the closest or the furthest benchmark are proposed. With this approach there is no need to use linear combinations of ...

Investors Facing Risk II: Loss Aversion and Wealth Allocation When Utility Is Derived From Consumption and Narrowly Framed Financial Investments

Rengifo, Erick W.; Trifan, Emanuela (2007)
This paper studies the attitude of non-professional investors towards financial losses and their decisions concerning wealth allocation among consumption, risky, and risk-free financial assets. We employ a two-dimensional utility setting in which both consumption and financial wealth fluctuations generate utility. The perception of financial wealth is modelled in an extended prospect-theory framework that accounts for both the distinction between gains and losses with respect to a subjective ...

Some notes on how to catch a red herring Ageing, time-to-death & care costs for older people in Sweden

Karlsson, Martin; Klohn, Florian (2011)
In this paper we test the 'red herring' hypothesis for expenditures on long-term care. The main contribution of this paper is that we assess the 'red herring' hypothesis using an aggregated measure that allows us to control for entering the final period of life on the individual level. In addition we implement a model that allows for age specific time-to-death (TTD) effects on Long Term Care. We also account for the problem that mortality, and therefore TTD, are themselves influenced by care ...

Preisträgheit und reale Wechselkursdynamik. Die Persistenz realer Wechselkurse in dynamischen stochastischen Gleichgewichtsmodellen

Heil, Volker (2003)
Dieses Arbeitspapier untersucht Erklärungen für das hohe Mass an Persistenz und Volatilität des realen Wechselkurses. Dabei wird dem Ansatz gefolgt, dass die Schwankungen des realen Wechselkurses zurückzuführen sind auf exogene Schocks in Interaktion mit trägen Güterpreisen. Der Fokus liegt dabei auf dynamischen stochastischen „General Equilibrium“-Modellen, welche nominale Rigiditäten, in Form von träge reagierenden Güterpreisen, und unvollkommenen Wettbewerb in die Modellformulierung integr...

Determinants of ICT Infrastructure: A Cross-Country Statistical Analysis

Krüger, Jens J.; Rhiel, Mathias (2016)
We investigate economic and institutional determinants of ICT infrastructure for a broad cross section ofmore than 100 countries. The ICT variable is constructed from a principal components analysis. The explanatory variables are selected by variants of the Lasso estimator from the machine learning literature.In addition to least squares, we also apply robust and semiparametric regression estimators. The results show that the regressions are able to explain ICT infrastructure very well. Maj...