THE EFFECTS OF EXPANDING THE GENEROSITY OF THE STATUTORY SICKNESS INSURANCE SYSTEM

This article evaluates an expansion of employer‐mandated sick leave from 80% to 100% of forgone gross wages in Germany. We employ and compare parametric difference‐in‐difference (DID), matching DID and mixed approaches. Overall workplace absences increased by at least 10% or 1 day per worker per year. We show that taking partial compliance into account increases coefficient estimates. Further, heterogeneity in response behavior was of great importance. There is no evidence that the increase in sick leave improved employee health, a finding that supports a shirking explanation. Finally, we provide evidence on potential labor market adjustments to the reform. Copyright © 2013 John Wiley & Sons, Ltd.     

One monetary policy and 18 central bankers: The European monetary policy as a game of strategic delegation

This paper employs a multi-country delegation monetary policy model and argues that a decision-making mechanism based on the median voter theorem where intensity of preferences cannot play a role does not capture important aspects of policy setting in the European Monetary Union. Replacing the median voter mechanism with a less restrictive “weighted mean mechanism”, it is shown that strategic delegation can lead to a surprising degree of central bank inflation aversion. This finding supports the “The Twin Sister Hypothesis” and the perception of the European Central Bank implementing the policy of the Bundesbank rather than a more inflationary monetary policy.     

Sorting by search intensity

In this paper, I characterize matching in an on-the-job search model with endogenous search intensity, heterogeneous workers and firms, and match surplus is shared between workers and firms through bargaining. I provide proof of existence and uniqueness of steady state equilibrium. Given equally efficient matched and unmatched search, the worker skill conditional distribution of firm productivity over matches is stochastically increasing (decreasing) in worker skill if the production function is supermodular (submodular). I also show that this strong notion of sorting does not obtain everywhere for the firm productivity conditional match distribution.     

Stratifying the Development of Product Platforms: Requirements for Resources,Organization, and Management Styles

The prior research on product platforms has added to our knowledge from a strategic, technological, and organizational point of view. However, the existing literature, while exploring the platform concept, considers the actual development of platforms from a rather general perspective although companies develop platforms for different aims, purposes, and product scopes. Following on from this, the requirements for platform development resources, the ways of organizing platform development, and the implications for management styles have not been explored and are presumably varying. To start elaborating on this, the research behind this article uses a clinical research approach in seven platform development cases from eight years' longitudinal research in three global manufacturing automotive original equipment manufacturers. Platform development is here defined and treated as development with the aim of creating a foundation, the platform, for the subsequent development of derivative products. The analysis of the development of platform in different strategic situations and with different purposes demonstrates how combinations of changes in components and/or architecture represent a key differentiator. An important result is the advancement of the platform perspective from an architecture with a set of components to a classification of four platform development variants based on alternative changes in architecture and/or components. Each type has different complexities and characteristics influencing the project length, requirements for platform development resources, principles for organizing, and implications for management styles.     

Calibrating a market model with stochastic volatility to commodity and interest rate risk

Based on the multi-currency LIBOR Market Model, this paper constructs a hybrid commodity interest rate market model with a stochastic local volatility function allowing the model to simultaneously fit the implied volatility surfaces of commodity and interest rate options. Since liquid market prices are only available for options on commodity futures, rather than forwards, a convexity correction formula for the model is derived to account for the difference between forward and futures prices. A procedure for efficiently calibrating the model to interest rate and commodity volatility smiles is constructed. Finally, the model is fitted to an exogenously given correlation structure between forward interest rates and commodity prices (cross-correlation). When calibrating to options on forwards (rather than futures), the fitting of cross-correlation preserves the (separate) calibration in the two markets (interest rate and commodity options), while in the case of futures a (rapidly converging) iterative fitting procedure is presented. The fitting of cross-correlation is reduced to finding an optimal rotation of volatility vectors, which is shown to be an appropriately modified version of the ‘orthonormal Procrustes’ problem in linear algebra. The calibration approach is demonstrated in an application to market data for oil futures.     

The characteristics of family firms: exploiting information on ownership,kinship, and governance using total population data

Family firms are often considered characteristically different from non-family firms. However, our understanding of family firms suffers from an inability to identify them in total population data; information is rarely available regarding owners, their kinship, and their involvement in firm governance. We present a method for identifying domiciled family firms using register data; this method offers greater accuracy than previous methods. We apply this method to Swedish data concerning firm ownership, governance, and kinship from 2004 to 2010. We find that the family firm is a significant organizational form, contributing over one third of all employment and gross domestic product (GDP). Family firms are common in most industries and range in size. Furthermore, we find that, compared to private non-family firms, family firms have fewer total assets, employment, and sales and carry higher solidity, although family firms are more profitable. These differences diminish with firm size. We conclude that the term “family firm” includes a large variety of firms, and we call for increased attention to their heterogeneity.     

Black Box Engineering: Redefining the Role of Product Specifications

Original equipment manufacturers (OEMs) in numerous industries recognize the benefits of involving their suppliers in the product design process. Specifications play a central role in guiding that supplier-OEM relationship. For so-called “black-box” parts, the OEM specifies overall requirements for product function and performance, cost targets, and development lead time, and then communicates this information to suppliers, who perform detailed engineering and testing. Black-box engineering marks a fundamental change in the buyer-supplier relationship, and companies that use or plan to adopt this practice must understand the factors that contribute to its successful implementation. Using survey responses from more than 300 suppliers to a European automobile OEM, Christer Karlsson, Rajesh Nellore, and Klas Soderquist identify the problems those suppliers face in the specification process. To provide insight into the context and the causes of those problems, they also describe the results of case studies conducted in the OEM and two suppliers. In this way, they attempt to identify critical factors that can help to improve the specifications process both internally at an OEM and between the OEM and its suppliers. The respondents identified numerous problems that they face in the specifications process. Based on feedback from product development managers and design staff members in the case study companies, those problems are categorized as follows: technical content and the level of detail in requirements, changes of specifications, cost, interpretation and understanding, and supplier participation in the specification process. Black-box engineering redefines the role of specifications. Instead of a fixed document that dictates to the supplier, the specification becomes an open medium for communicating functional and performance requirements and necessary technical adjustments. In other words, black-box products require a highly interactive design process. Product development managers for suppliers and OEMs must understand that they cannot avoid changes in specifications during black-box engineering projects. Rather than view such changes as wastes of time and effort, they should approach the black-box engineering process as a learning opportunity. By working with several parallel sets of functional solutions, which they can validate with the customer before developing detailed dimensional definitions, suppliers can limit the amount of time they lose as a result of changes in specifications.     

Technological Level and Product Development Cycle Time

This article investigates the link between product development cycle time and technological level in the final product, using a sample of 11 new car development projects. Reducing cycle time can create competitive advantages, but it also may lead to the development of technologically inferior products. Time is needed to digest and analyze technological problems. The conclusions from our study support the notion of a relationship between cycle time and technological level. Thus, there are important choices to be made regarding the desired level of technological maturity in the final product. This affects the required cycle time. Simply reducing the cycle time may not always be feasible or desirable