1,309 research outputs found
Self-Reinforcing Market Dominance
No full textAre initial competitive advantages self-reinforcing, so that markets exhibit an endogenous tendency to be dominated by only a few firms? Although this question is of great economic importance, no systematic empirical study has yet addressed it. Therefore, we examine experimentally whether firms with an initial cost advantage are more likely to invest in cost reductions than firms with higher initial costs. Wefind that the initial competitive advantages are indeed self-reinforcing, but subjects in the role of firms overinvest relative to the Nash equilibrium. However, the pattern of overinvestment even strengthens the tendency towards self-reinforcing cost advantages relative to the theoretical prediction. Further, as predicted by the Nash equilibrium, aggregate investment is not affected by the initial efficiency distribution. Finally, investment spillovers reduce investment, and investment is higher than the joint-profit maximizing benchmark for the case without spillovers and lower for the case with spillovers.Cost-reducing Investment, Asymmetric Oligopoly, Increasing Dominance, Experimental Study
Monopolistic Screening under Learning By Doing
No full textThis paper investigates the design of incentives in a dynamic adverse selection framework when agents’ production technologies display learning effects and agents’ rate of learning is private knowledge. In a simple two-period model with full commitment available to the principal, we show that whether learning effects are over- or under-exploited crucially depends on whether learning effects increase or decrease the principal’s uncertainty about agents’ costs of production. Hence, what drives the over- or underexploitation of learning effects is whether more efficient agents also learn faster (so costs diverge through learning effects) or whether it is the less efficient agents who learn faster (so costs converge). Furthermore, we show that if divergence in costs through learning effects is strong enough, learning effects will not be exploited at all, in a sense to be made precise.Asymmetric Information, Learning by Doing, Regulation
Coat Cooke & Joe Poole | Coat Cooke & Rainer Wiens: Reviews
No full textCoat Cooke album reviews by Randy Raine-Reusch. Coat Cooke (sax); Joe Poole (drums); Rainer Wiens (guitar)
Akten zur Auswärtigen Politik der Bundesrepublik Deutschland 1969
No full textHauptherausgeber: Hans-Peter Schwarz ;
Mitherausgeber: Helga Haftendorn, Klaus Hildebrand, Werner Link, Horst Möller und Rudolf Morsey ;
Wissenschaftlicher Leiter: Rainer Blasius ;
Bearbeiter: Franz Eibl, Hubert ZimmermannDie Wahl Willy Brandts zum Bundeskanzler am 21. Oktober 1969 war eine Zäsur in der Geschichte der Bundesrepublik. Die sozialliberale Koalition setzte neue Zeichen, vor allem in der Deutschland- und Ostpolitik. Aufschluß über den außenpolitischen Auftakt der Regierung Brandt/Scheel und den Ausklang der Regierung Kiesinger/Brandt gibt nun der Jahresband 1969 der "Akten zur Auswärten Politik der Bundesrepublik Deutschland", der mit Ablauf der dreißigjährigen Aktensperrfrist eine Auswahl von 415 Dokumenten präsentiert
Robert Rainer and Claud Garner
No full textAuthor Claud Garner, right, autographed copies of his second novel while discussing a tour of other Southwest cities with Robert Rainer, representing his publisher, Creative Age Press. Published in the Fort Worth Star - Telegram morning edition, September 29, 1950.https://mavmatrix.uta.edu/specialcollections_startelegram1950s/6596/thumbnail.jp
Quantum chemistry of 2D-nanomaterials : investigation of graphene, hBN and α-borophene on SiO2 (001)
No full textAuthor: Felix Rainer Serafin Purtscher, BScMasterarbeit University of Innsbruck 202
Quantum chemistry of 2D-nanomaterials : investigation of graphene, hBN and α-borophene on SiO2 (001)
No full textAuthor: Felix Rainer Serafin Purtscher, BScMasterarbeit University of Innsbruck 202
Akten zur Auswärtigen Politik der Bundesrepublik Deutschland 1952
No full textHauptherausgeber: Hans-Peter Schwarz ;
Mitherausgeber: Helga Haftendorn, Klaus Hildebrand, Werner Link, Horst Möller und Rudolf Morsey ;
Wissenschaftlicher Leiter: Rainer Blasius ;
Bearbeiter: Martin Koopmann, Joachim WintzerDie Integration der Bundesrepublik Deutschland in die westliche Staatengemeinschaft war ein langwieriger Prozeß. Im Jahr 1952 wurden dazu wichtige Weichenstellungen getroffen, die in der Edition "Akten zur Auswärtigen Politik der Bundesrepublik Deutschland 1952" anhand von 253 Dokumenten dargestellt werden. Geheime Verschlußsachen werden der Öffentlichkeit zum ersten Mal zugänglich gemacht. Wichtige Themen sind u.a. der Generalvertrag und der Vertrag über die Europäische Verteidigungsgemeinschaft, die Stalin-Noten und das Wiedergutmachungsabkommen mit Israel
Mutations in <i>TGDS</i> associated with additional malformations of the middle fingers and halluces: Atypical Catel-Manzke syndrome in a fetus
No full textPierre-Robin sequence, radial deviation, and ulnar clinodactyly of the index fingers due to an additional phalangeal bone, as well as heart defects are the key features of Catel-Manzke syndrome. Although mutations in TGDS were identified as the cause of this disorder, the pathogenetic mechanism remains unknown. Here, we report on a fetus with severe heart defect, nuchal edema, talipes, Pierre-Robin sequence, and bilateral deviation and clinodactyly of the index and middle fingers. Pregnancy was terminated at the 22nd week of gestation. Postmortem radiographs showed hypoplasia and V-shaped displacement of the second and third proximal phalanges of both hands as well as hypoplasia of the first metatarsals and the phalangeal bones of the halluces. The suggested diagnosis Catel-Manzke syndrome was confirmed by the detection of two compound heterozygous mutations in TGDS: The known variant c.298G>T; p.(Ala100Ser) and the so far undescribed variant c.895G>A; p.(Asp299Asn), located in the predicted substrate binding site of TGDS. This is the first report on the association of mutations in TGDS with additional anomalies of the middle fingers and halluces. We provide a detailed phenotypic characterization of the only fetus with molecularly confirmed Catel-Manzke syndrome, which is relevant for prenatal diagnosis. Our findings widen the phenotype spectrum caused by TGDS mutations and underline the phenotypic overlap with Temtamy preaxial brachydactyly syndrome. This improves our understanding of the prenatal development and the pathogenetic mechanism of Catel-Manzke syndrome
Die politische Religion : Eine Untersuchung über den Ursprung des Verfalls in der Geschichte (1935). Herausgegeben und eingeleitet von Rainer Hering
No full textDer vierte Band der "Hamburger Historischen Forschungen" umfasst in erster Linie die Edition eines unveröffentlichten Textes. Autor ist der Theologe Prof. Dr. Dr. Paul Schütz (1891–1985), der von 1940 bis 1952 Hauptpastor an der Hamburger Hauptkirche St. Nikolai war und zugleich als hauptamtlicher Dozent und später als Professor der Theologie an der Kirchlichen Hochschule Hamburg lehrte. Er gehört zu den ersten, die ein Konzept der politischen Religion entwickelten. Sein 1935 verfasster Beitrag konnte damals nicht publiziert werden.
Heute ist eine Edition dieses Beitrages zum einen wichtig für die Theologie- und Kirchengeschichte. Zum anderen gibt es seit einigen Jahren in der historischen Forschung eine intensive Diskussion über die in den Dreißigerjahren des 20. Jahrhunderts entwickelte Interpretation des „Dritten Reiches“ als „politische Religion“. Dieses Modell, das Diktaturen, insbesondere den Nationalsozialismus, als „politische Religion“ versteht, wird im Allgemeinen Eric Voegelin und Raymond Aron zugeschrieben, die ihre Ansätze 1938 bzw. 1939 publizierten.
Dass Paul Schütz schon drei bzw. vier Jahre zuvor eine solche Konzeption entwickelt hatte, war bis vor Kurzem nicht bekannt. Die vorliegende Edition kann daher neue Impulse für die Debatte über die Geschichte und Tragfähigkeit dieses Ansatzes geben und sie inhaltlich bereichern.The fourth volume of the series "Hamburger Historische Forschungen" comprises primarily the edition of an unpublished text. The author is the theologian Prof. Dr. Dr. Dr. Paul Schütz (1891-1985) who was the main pastor at the Hamburg Main Church St. Nikolai from 1940 to 1952. At the same time he taught as a full-time lecturer and later as professor of theology at the Church University of Hamburg. Schütz was one of the first to develop a concept of political religion. His contribution, written in 1935, could not be published at that time.
Today, an edition of this article is important for the history of theology and church history. On the other hand, for some years now there has been an intensive discussion in historical research on the interpretation of the "Third Reich" as a "political religion" developed in the 1930s. This model, which sees dictatorships, especially National Socialism, as a "political religion", is generally attributed to Eric Voegelin and Raymond Aron, who published their approaches in 1938 and 1939 respectively.
It was not known until recently that Paul Schütz had already developed such a concept three or four years earlier. The present edition can therefore provide new impetus for the debate on the history and viability of this approach and enrich its content
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