Identification and Use of Efficient Faces and Facets in DEA

This paper provides an outline of possible uses of complete information on the facial structure of a polyhedral empirical production possibility set obtained by DEA. It is argued that an identification of all facets can be used for a characterization of basic properties of the empirical production frontier. Focus is on the use of this type of information for (i) the specification of constraints on the virtual multipliers in a cone-ratio model, (ii) a characterization of the data generation process for the underlying observed data set, and (iii) the estimation of isoquants and relevant elasticities of substitution reflecting the curvature of the frontier. The relationship between the so-called FDEF approach and the cone-ratio model is explored in some detail. It is demonstrated that a decomposition of the facet generation process followed by the use of one of the available (exponential) convex hull algorithms allows for an explicit identification of the facial structure of the possibility set in fairly large DEA data sets. It is a main point to be made that the difficulties encountered for an identification of all facets in a DEA-possibility set can be circumvented in a number of empirical data sets and that this type of information can be used for a characterization of the structural properties of the frontier.     

Quits,recission of quits,and constructive discharge in arbitration

This article explores the arbitral criteria involved in cases when grievants quit or appear to quit their jobs, and then change their minds. It looks at factors that arbitrators take into account in determining when a voluntary resignation has taken place. The principles or guidelines for rescinding a quit are also reviewed. When a quit is forced by some action of the employer, arbitrators generally consider this situation to constitute a constructive discharge, and if such a finding is made, will review the discharge to determine whether it meets just cause standards.Donald J. Petersen is also an arbitrator listed on the panels of the American Arbitration Association, Federal Mediation and Conciliation Service, the Public Employee Panels of the State of Iowa, and the Wisconsin Employment Relations Commission. He is a member of the National Academy of Arbitrators.     

Trade dynamics in Cape Town township informal foodservice – a qualitative and supply chain study

The township cash economy of fast food, takeaways, and prepared meals is collectively termed ‘informal foodservice’. An analysis of a five-township ～3800 microenterprise census, and qualitative supply chain investigation of 50 informal foodservice retailers and 75 consumers revealed a well-established although deeply informal trade predominated by women preparing takeaway foods and conducting street braai (BBQ). The business demonstrates high dependence on the immediate place of operations which includes local input suppliers and selling to a narrow pool of trade from immediate (walking scale) neighbourhoods. Supply chains are short, linked to formal agriculture and wholesale sectors. Informal foodservice is heavily utilised by local residents on a regular basis who spend up to R218 per week on products (potentially 30% of income) from these outlets. These enterprises make a substantial contribution towards satisfying local food demand whilst serving an important social protection and neighbourhood relationship function.     

Knowledge Sharing in Interorganizational Product Development Teams: The Effect of Formal and Informal Socialization Mechanisms*

Working collaboratively with suppliers is increasingly cited as a “best practice” in product development. The importance of sharing knowledge between buyer and supplier in this context has been well recognized, although comparatively little research exists on the interorganizational socialization mechanisms that facilitate it. The present research proposes and tests a theoretical model of the impact of formal and informal socialization mechanisms on the level of knowledge sharing within interorganizational product development projects and the subsequent effect on buyer firm performance. Results from this study of 111 manufacturing organizations in the United Kingdom largely support its hypotheses. It is revealed that informal socialization mechanisms (e.g., communication guidelines, social events) play an important role in facilitating interorganizational knowledge sharing, whereas formal socialization mechanisms (e.g., cross‐functional teams, matrix reporting structures) act indirectly through informal socialization to influence knowledge sharing. The results also show that interorganizational knowledge sharing is positively associated with supplier contribution to development outcomes, which, in turn, improves buyer product development performance and, ultimately, financial performance. Product development managers are encouraged to build social ties between interorganizational development teams to increase the flow of knowledge and to improve both product development outcomes and financial performance.     

Analysen und Berichte

Enste and Wicher suggest that political regulation is always wealth-reducing. However, their analysis neglects various relevant determinants of the wealth indicator. Economic wealth cannot be estimated from the quantity of regulation, as quality and other aspects matter. Hence, political acumen is required. Enste and Wicher reply to criticism of the regulation index and the analysis of the impact of regulation on education. They argue that they neither ignore the positive effects of regulation (taken into account with the data on good governance indicators) nor demand a zero regulation policy. Instead, the main goal of the analysis is to provide an international comparison for “better regulation”.     

Cash holdings and R&D smoothing

The sharp increase in R&D investment in recent decades has important but unexplored implications for corporate liquidity management. Because R&D has high adjustment costs and is financed with volatile sources, it is very expensive for firms to adjust the flow of R&D in response to transitory finance shocks. The main contribution of this paper is to directly examine whether firms use cash reserves to smooth their R&D expenditures. We estimate dynamic R&D models and find that firms most likely to face financing frictions rely extensively on cash holdings to smooth R&D. In particular, our estimates suggest that young firms used cash holdings to dampen the volatility in R&D by approximately 75% during the 1998–2002 boom and bust in equity issues. Firms less likely to face financing frictions appear to smooth R&D without the use of costly cash holdings. Our findings provide new insights into the value of liquidity and the financing of intangible investment, and suggest that R&D smoothing with cash reserves is now important for understanding cash management for a substantial fraction of publicly traded firms.     

Climate Change and the Polanyian Counter-movement: Carbon Markets or Degrowth?

In the midst of a wave of market expansion, carbon markets have been proposed as the best way to address global climate change. While some argue that carbon markets represent a modern example of a Polanyian counter-movement to the environmental crisis, we adopt a structural interpretation of Polanyi to refute this claim. Carbon markets represent a further expansion of markets that fails to address the underlying contradictions related to the commodification of nature. In addition, they increase risks to society and the domination of economic elites. While carbon markets further subject social and ecological relations to market mechanisms, we examine degrowth as a possible response to climate change that prioritises social and environmental goals over economic growth. While degrowth continues to be dismissed as impractical or impossible, a growing number of scholars, scientists and activists argue it is the only way to address global climate change. In contrast to carbon markets, we argue degrowth could represent a genuine Polanyian counter-movement in response to climate change. In addition, degrowth could help all those disenfranchised by market fundamentalism by addressing the triple crises related to the commodification of land, labour and money.     

Do First‐Time House Buyers Receive Financial Transfers from Their Parents?*

Using Danish longitudinal data with information about wealth for a sample of first‐time house buyers and their parents, we test whether there are direct financial transfers from parents to children in connection with the house purchase, or in connection with unemployment spells occurring just after the purchase, when children typically hold few liquid assets. First, we document that child and parent financial resources are correlated. Then, we introduce conditioning variables and exploit the panel aspect of the data to also condition on fixed unobserved factors, which arguably govern preferences and/or productivity. We find no evidence of direct financial transfers.     

The Political Economy of Geoengineering as Plan B: Technological Rationality,Moral Hazard,and New Technology

Geoengineering would mask and reproduce capital’s contradictory needs to self-expand, on the one hand, and maintain a stable climate system, on the other. The Plan B frame, which presents geoengineering as a back-up plan to address climate change in case there is a failure to sufficiently reduce emissions (Plan A), is one means to depict this condition to the public and is a product of, and appeals to, a prevalent ‘technological rationality’. Despite its misleading simplicity, logical flaws, and irrational rationality, the Plan B frame is a relatively valid representation of geoengineering in current political-economic conditions. Although the Plan B frame will gain traction because Plan A is too expensive in the short term and does not serve powerful interests, there are alternative social futures in which technology could be used to address climate change in ways that preserve the environment and reduce social risks.