A central limit theorem for the Hellinger loss of Grenander‐type estimators

We consider Grenander‐type estimators for a monotone function , obtained as the slope of a concave (convex) estimate of the primitive of λ. Our main result is a central limit theorem for the Hellinger loss, which applies to estimation of a probability density, a regression function or a failure rate. In the case of density estimation, the limiting variance of the Hellinger loss turns out to be independent of λ.     

Pricing and risk of swing contracts in natural gas markets

Review of Derivatives Research - Motivated by the growing importance of swing contracts in natural gas markets, this article extends the literature on commodity price modelling as well as valuation...     

Fiscal Decentralization and Government Size: An International Test for Leviathan Accounting for Unmeasured Economic Activity

Tests for the presence of Leviathan, evidenced by a positive relationship between the size of government measured as a percentage of GDP, and the degree of fiscal centralization, have provided mixed results. We derive alternative measures of the size of government taking into account household and informal market activity. Traditional Leviathan models are then re-estimated for an international sample of forty-five countries. Controlling for income, population, intergovernmental grants, and urbanization we test whether fiscal centralization is responsible for the relative size of government. We find no evidence of a relationship between fiscal centralization and government size.     

Credit risk transfer and bank competition

We present a banking model with imperfect competition in which borrowers’ access to credit is improved when banks are able to transfer credit risks. However, the market for credit risk transfer (CRT) works smoothly only if the quality of loans is public information. If the quality of loans is private information, banks have an incentive to grant unprofitable loans that are then transferred to other parties, leading to an increase in aggregate risk. Higher competition increases welfare in the presence of CRT with public information. In contrast, welfare eventually decreases for high levels of competition in the presence CRT with private information due to the expansion of unprofitable loans. This finding coincides with the decrease in credit quality observed during the late years of the credit boom preceding the subprime crisis.     

Rationality in supplier selection decisions: The effect of the buyer's national task environment

Our study sheds light on two fundamental questions in supply management: First, does adherence to highly rational decision processes help buyers make better supplier selection decisions? Second, is the influence of procedural rationality on decision effectiveness moderated by buyers’ (differently dynamic) task environments? We empirically test these questions using a sample of 150 supplier selection decisions taken in China and 150 decisions taken in Germany, countries that expose buyers to dynamic decision environments and stable decision environments, respectively. Our findings suggest that the influence of decision process rationality is stable across decision makers’ task environments. Both in China and in Germany, such process rationality is positively related with higher decision quality, and no significant differences in relationship strengths emerge between the two country samples.     

Supply chain management and the evolution of the “Big Middle”

The authors define the “Big Middle” as the marketspace in which the bulk of retailers compete for the majority of customers and the preponderance of expenditures occur. Therefore, it is the space in which retailers aspire to exist in their quest for increased revenues, scale economies, and profits. An enduring concept, the Big Middle appears in any economy in which large-scale retailing has developed. In general merchandise retailing in the U.S., there have been three Big Middle subperiods, each defined by a distinct branch of the general merchandising tree; driven by geographic, technological, and socioeconomic changes; and dominated by preeminent retail chains. During the variety store subperiod, the F.W. Woolworth chain dominated. In the national-chain department store subperiod, Sears Roebuck and JCPenney were the primary retailers, and in the modern discounter subperiod, Wal-Mart, Kmart, and Target have emerged as leaders. The authors argue that the development of these subperiods and the success of their major retailers have depended on the efficient and effective flow of merchandise from suppliers to customers. Optimizing this flow always has entailed harnessing current technology, given the geographic and socioeconomic realities of the time. Currently, technology facilitates a comprehensive application of supply chain management, whereas previous technology only permitted a simplified version.     

„Drum prüfe,wer sich bindet...” — eine empirische untersuchung zur wirkung von markenkooperationen

ZusammenfassungMarkenkooperationen sind en vogue, kaum ein Markenhersteller, der in der jüngsten Vergangenheit nicht an eine solche Form der Zusammenarbeit gedacht h?tte. Warum auch nicht? Die damit einhergehenden Nutzenm?glichkeiten sind vielseitig und reichen von der Halbierung der Marketingkosten, der Steigerung von Reichweite- und Bekanntheitsgrad bis hin zur übertragung von markenindividuellen Assoziationen. Das nachfolgende Fallbeispiel des FreshSurfer zeigt, dass man sich beim Aufbau von langfristigen Markenkooperationen jedoch nicht nur von kurzfristigen Opportunit?ten verleiten lassen sollte, sondern eine solche Zusammenarbeit vorab auf verschiedenen Dimensionen gewissenhaft abgekl?rt werden muss.     

Organizational complexity and participatory innovation: participatory budgeting in local government

ABSTRACT

In this study, we examined the relationship between organizational complexity and the adoption of participatory innovation in German municipal government. We proposed that organizations with more complex organizational structures are more likely to adopt participatory innovation. We investigated municipalities (N = 394) of the German state of North Rhine-Westphalia and used participatory budgeting as an indicator for innovation. Our results indicate that organizational complexity expressed by functional differentiation has a positive relationship with the occurrence of participatory innovation. The results inform a debate about the value trade-offs that are inherent to the structural design of public organizations.