Exploring supportive and defensive communication behavior and psychological safety between supervisors and their subordinates

Master's Project (M.A.) University of Alaska Fairbanks, 2015This project explores the relationship between supportive and defensive communication behavior and psychological safety in the organizational setting. A paper and pencil survey measuring team psychological safety and supportive and defensive communication behaviors was administered to participants in the northwestern region of the United States. Supervisor use of supportive communication behavior was hypothesized to be positively correlated with employee psychological safety. Support was found for the hypothesis. This research sought to expand the scope of our understanding of psychological safety in an organizational setting while highlighting the benefits of using supportive communication behavior

Learning from Logged Implicit Exploration Data

We provide a sound and consistent foundation for the use of \emph{nonrandom} exploration data in "contextual bandit" or "partially labeled" settings where only the value of a chosen action is learned. The primary challenge in a variety of settings is that the exploration policy, in which "offline" data is logged, is not explicitly known. Prior solutions here require either control of the actions during the learning process, recorded random exploration, or actions chosen obliviously in a repeated manner. The techniques reported here lift these restrictions, allowing the learning of a policy for choosing actions given features from historical data where no randomization occurred or was logged. We empirically verify our solution on two reasonably sized sets of real-world data obtained from Yahoo!

The Macroeconomic Effects of Progressive Taxes and Welfare

We analyze the positive and normative effects of a progressive tax on wages in a nonlinear New Keynesian DSGE model in the presence of demand and technology shocks. The non-linearity allows us to disentangle the effects of the progressive tax on the volatility and the level of macroeconomic variables, for both intertemporally optimizing (“Ricardian") and non-Ricardian (“rule-of- thumb") households. We find that the interaction of the two household types is of crucial importance. When only Ricardian households are considered, progressive taxes increase welfare (compared to at taxes) in the presence of technology shocks. Aggregate welfare falls, however, when rule-of-thumb households are added to the analysis. The progressive tax increases the welfare of the latter household by lowering its consumption volatility, but this is overcompensated for by the destabilization of Ricardian household consumption. Under demand shocks, progressive taxes reduce the welfare of both household types, with the welfare of rule-of-thumb households falling despite a decline in their consumption volatility. The reason is a lower average consumption level which is related to the changed curvature of the marginal cost function

Gini decompositions and Gini elasticities: On measuring the importance of income sources and population subgroups for income inequality

This paper points to flaws in Gini decompositions by income sources and population subgroups and to common pitfalls in the interpretation of decomposition results, focusing on methods within the framework of Rao (1969). We argue that within this framework Gini elasticities may provide the only meaningful way to examine the relevance of income sources or population subgroups for total income inequality. Moreover, we show that existing methods are unsuitable to decompose the trend in the Gini coefficient and provide a coherent method to decompose the Gini trend by income sources. We add to the recent trend of multi-decompositions by deriving Gini elasticities from a simultaneous decomposition by income sources and population subgroups

Die überörtliche Biotopverbundplanung als Rahmenplan bei der Aufstellung des Landschaftsplanes am Beispiel der Gemeinde Elsteraue (Burgenlandkreis)

Aufgabe der Landschaftsplanung ist es, konzeptionell und umsetzungsorientiert Erfordernisse und Maßnahmen für eine langfristige und umfassende Erhaltung, Wiederherstellung und Entwicklung von Natur und Landschaft aufzuzeigen, um einen funktionsfähigen Naturhaushalt zu sichern und um die Erholungsvorsorge zu gewährleisten. Der Landschaftsplan für die Gemeinde Elsteraue (Burgenlandkreis) wurde in den Jahren von 2005 bis 2006 erarbeitet. Die Biotopverbundplanung für den Burgenlandkreis bildete dabei eine wesentliche fachliche Vorgabe, die im Rahmen des Landschaftsplanes weiter präzisiert wurde. Dieser Prozess soll nachfolgend dargestellt werden. Aufgrund der Gemeindegröße wird beispielhaft der Bereich der Weißen Elster herausgegriffen

Monotone Hurwitz numbers in genus zero

Hurwitz numbers count branched covers of the Riemann sphere with specified ramification data, or equivalently, transitive permutation factorizations in the symmetric group with specified cycle types. Monotone Hurwitz numbers count a restricted subset of the branched covers counted by the Hurwitz numbers, and have arisen in recent work on the the asymptotic expansion of the Harish-Chandra-Itzykson-Zuber integral. In this paper we begin a detailed study of monotone Hurwitz numbers. We prove two results that are reminiscent of those for classical Hurwitz numbers. The first is the monotone join-cut equation, a partial differential equation with initial conditions that characterizes the generating function for monotone Hurwitz numbers in arbitrary genus. The second is our main result, in which we give an explicit formula for monotone Hurwitz numbers in genus zero.Comment: 22 pages, submitted to the Canadian Journal of Mathematic