Towards new agreements on international trade liberalization

Zusammenfassung Zu neuen Abkommen über Liberalisierung des internationalen Handels. — Die Vielfalt der nichttarif?ren Handelshemmnisse steht ihrem allgemeinen und linearen Abbau—analog den Zollverhandlungen der Kennedy-Runde — bislang entgegen. In der vorliegenden Studie wird daher vorgeschlagen, für jedes Land einen ?Zolltarif der nichttarif?ren Handelshemmnisse? zu berechnen, indem auβertarif?re Maβnahmen in Form von Zoll?quivalenten quantifiziert werden. Dabei ist die zentrale Hypothese, daβ jedes Handelshemmnis die Differenz zwischen heimischen Erzeugerpreisen und Importpreisen vergr?βert; diese Differenz—gemessen in vom Hundert des Importpreises—ist das Zoll?quivalent. Die Methode der Quantifizierung sollte je nach Art der statistischen Daten gew?hlt werden. Drei M?glichkeiten werden vorgeführt, und zwar für homogene Produkte ein direkter Preisvergleich am Beispiel des Steinkohlebergbaus, für heterogene Produkte ein Elastizit?tsansatz am Beispiel der feinkeramischen Industrie und ein Vergleich von Warenk?rben am Beispiel der Textilindustrie. Abschlieβend werden m?gliche Divergenzen zwischen Protektionswirkungen und Protektionsabsichten untersucht.

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Resumen Hacia un nuevo acuerdo sobre la liberalizatión del comercio international. —La diversidad de barreras no arancelarias existente se ha mostrado como obstáculo a una desarme general y lineal análogo a las reducciones arancelarias en la ronda Kennedy. En el presente trabajo los autores proponen el establecimiento, en cada pais, de un ?arancel aduanero de las trabas no arancelarias? que se obtiene mediante la calculación de equivalentes arancelarios de aquellas trabas. La premisa central es que cualquier barrera a la importatión aumenta la diferencia entre los precios industriales domésticos y los de importación; esta diferencia, expresada como porcentaje del precio de importación, corresponde al equivalente arancelario. El método de cuantificación a aplicar deberá regirse por los datos estadfsticos disponibles. Los autores presentan très posibilidades, a saber: para productos homogéneos una comparación de precios directa, tomándose como ejemplo la industria extractiva del carbón, para productos heterogéneos un concepto de elasticidad, sirviendo de ejemplo la industria de la cerámica, y una comparación de la cesta de productos, utilizándose como ejemplo la industria textil. Finalmente los autores analizan posibles divergencias entre los efectos y las intenciones de medidas proteccionistas.

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Résumé Vers de nouveaux accords sur la libéralisation du commerce international. —La diversité des barrières non-tarifaires au commerce a jusqu’ à présent empêché leur réduction universelle et linéaire—conformément aux réductions tarifaires du ?Kennedy Round?. Dans l’article que voici on propose donc de calculer pour chaque pays un tarif douanier des barrières non-tarifaires en quantifiant les mesures non-tarifaires sous forme d’équivalents de tarifs. L’hypothèse qui en sert de base soutient que chaque barrière au commerce international augmente la différence entre les prix du marché national et ceux du marché mondial; cette différence — exprimée en pourcentages des prix d’importation—représente l’équivalent du tarif douanier. La méthode de quantification doit être adaptée aux données statistiques qu’on possède. Trois possibilités sont discutées en détail: pour les produits homogènes, la comparaison directe démontrée à l’exemple de l’industrie minière du charbon; pour les produits hétérogènes, un calcul d’élasticité demontre à l’exemple de l’industrie de poterie, et la comparaison de paniers de marchandises démontrée à l’exemple de l’industrie textile. Finalement, sont examinées les divergences possibles entre les effets du protectiónnisme et l’intention protectionniste.

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Riassunto Di nuovi accordi sulla liberalizzazione del commercio internazionale. —La molteplicit à degli ostacoli commerciali non tariffari sta finora in opposizione —analogamente aile trattative doganali del Kennedy-Runde—alla sua generale e lineare demolizione. Nel presente studio viene perció proposto di calcolare per ogni Paese una ?tariffa doganale degli ostacoli commerciali non tariffari?, mentre provvedimenti extratariffari sono quantificati in forma di equivalenze doganali. Inoltre l’ipotesi centrale è che ogni ostacolo commerciale ingrandisce la differenza tra prezzi di prodotti nazionali e prezzi d’importazione; questa differenza—misurata in per cento del prezzo d’importazione—è l’equivalenza doganale. Il metodo delia quantificazione dovrebbe essere scelto a seconda del genère dei dati statistici. Tre possibilit à sono presentate, e cioè per prodotti omogenei un diretto confronto dei prezzi sull’esempio dell’industria mineraria del carbone, per prodotti eterogenei un’impiego di elasticit à sull’esempio dell’industria di cerámica fine e un confronto di canestri di merci sull’esempio dell’industria tessile. In ultimo sono analizzate possibili divergenze tra effetti di protezione e intenzioni di protezione.

     

Cointegration Analysis of Seasonal Time Series

This paper reviews various recent approaches to cointegration analysis of seasonal time series. In addition to the usual decisions concerning data transformations and univariate time series properties, it is necessary to decide how seasonal variation is included in the multivariate model and how standard cointegration methods should accordingly be modified. Seasonal cointegration and periodic cointegration methods are discussed, as are some of their recent refinements. An overview of further research topics is also provided.     

Marketing messbar machen — die wirkung von empfehlungsnetzwerken auf die marketing performance

Netzwerke und Kooperationen sind entscheidende Instrumente zur Steigerung des Unternehmenswertes. Bisher haben sich Ans?tze hier auf die Unternehmensseite (Wertsch?pfungs-, Entwicklungsund Vertriebsnetzwerke) konzentriert. In jüngster Zeit rücken auch Netzwerke auf Nachfragerseite etwa in Form von Kommunikations- und Empfehlungsnetzwerken zunehmend in den Blickpunkt. Solche sozialen Netzwerke k?nnen gerade durch Marketingma?nahmen initiiert und gestaltet werden. Sie sind zentrale Stellhebel zur Steigerung der Marketing Performance und somit zur Legitimierung der Marketingfunktion.     

A constraint-free approach to optimal reinsurance

Reinsurance is available for a reinsurance premium that is determined according to a convex premium principle H. The first insurer selects the reinsurance coverage that maximizes its expected utility. No conditions are imposed on the reinsurer's payment. The optimality condition involves the gradient of H. For several combinations of H and the first insurer's utility function, closed-form formulas for the optimal reinsurance are given. If H is a zero utility principle (for example, an exponential principle or an expectile principle), it is shown, by means of Borch's Theorem, that the optimal reinsurer's payment is a function of the total claim amount and that this function satisfies the so-called 1-Lipschitz condition. Frequently, authors impose these two conclusions as hypotheses at the outset.     

Transferring knowledge across sub-genres of the ABC implementation literature

In the last decade, a continuous stream of empirical articles has investigated how various implementation process factors (including, top management support, adequate resources, and ABC training) influence ABC implementation success. However, at the same time, a growing number of researchers have criticised this ‘mainstream approach’ for, among other things, neglecting issues of power and politics and for viewing ABC implementations as something inherently positive. Based on Lukka and Granlund's [Lukka, K., Granlund, M., 2002. The fragmented communication structure within the accounting academia: the case of activity-based costing research genres. Acc. Organ. Soc. 27, 165–190] call for communication between various streams of ABC research, the purpose of this paper is to discuss how the ‘mainstream’ implementation literature may benefit from insights made in the politically oriented literature. A key conclusion is that such an analysis not only provides us with enriched explanations of the relatively strong and coherent findings in the ‘mainstream’ ABC implementation literature, but has also the potential to explain ‘unexpected’ and ‘contradictory’ results found in this stream of research. Based on these observations, a number of directions for future research are proposed.     

Dynamic order submission strategies with competition between a dealer market and a crossing network

We analyze a dynamic microstructure model in which a dealer market (DM) and a crossing network (CN) interact for three informational settings. A key result is that coexistence of trading systems generates systematic patterns in order flow, which depend on the degree of transparency. Further, we study overall welfare, measured by the gains from trade of all agents, and compare it with the maximum overall welfare. The discrepancy between both measures is attributable to two inefficiencies. Due to these inefficiencies, introducing a CN next to a DM, as well as increasing the transparency level, not necessarily produces greater overall welfare.     

Complementors as connectors: managing open innovation around digital product platforms

In the digital age, open innovation is increasingly organized around platform ecosystems. This paper investigates how firms can coordinate open innovation as a platform strategy for the development of complementary products by independent third parties. We draw on a qualitative case study of Philips Hue – a connected lighting platform for consumers with its variety of complementary products. We identify three increasingly complex ways in which independent complements connect to a focal platform. Our findings show that managing these connections requires a hybrid open innovation approach that combines arm’s length coordination, with a large number of complementors through open interfaces, and intensive bilateral collaboration, with a selected number of partners. Our findings demonstrate that complex interconnections across digital platforms and products lead to the management challenge of navigating an ‘ecology of platforms’, which warrants future research.