Natural conjugate priors for the instrumental variables regression model applied to the Angrist–Krueger data

We propose a natural conjugate prior for the instrumental variables regression model. The prior is a natural conjugate one since the marginal prior and posterior of the structural parameter have the same functional expressions which directly reveal the update from prior to posterior. The Jeffreys prior results from a specific setting of the prior parameters and results in a marginal posterior of the structural parameter that has an identical functional form as the sampling density of the limited information maximum likelihood estimator. We construct informative priors for the Angrist–Krueger [1991. Does compulsory school attendance affect schooling and earnings? Quarterly Journal of Economics 106, 979–1014] data and show that the marginal posterior of the return on education in the US coincides with the marginal posterior from the Southern region when we use the Jeffreys prior. This result occurs since the instruments are the strongest in the Southern region and the posterior using the Jeffreys prior, identical to maximum likelihood, focusses on the strongest available instruments. We construct informative priors for the other regions that make their posteriors of the return on education similar to that of the US and the Southern region. These priors show the amount of prior information needed to obtain comparable results for all regions.     

Burn or bury? A social cost comparison of final waste disposal methods

This paper evaluates the two well-known final waste disposal methods, incineration and landfilling. In particular we compare the social cost of two best-available technologies using a point estimate based on private and environmental cost data for the Netherlands. Not only does our comparison allow for Waste-to-Energy incineration plants but for landfills as well. The data provide support for the widespread policy preference for incineration over landfilling only if the analysis is restricted to environmental costs alone and includes savings of both energy and material recovery. Gross private costs, however, are so much higher for incineration, that landfilling is the social cost minimizing option at the margin even in a densely populated country such as the Netherlands. Furthermore, we show that our result generalizes to other European countries and probably to the USA. Implications for waste policy are discussed as well. Proper treatment of and energy recovery from landfills seem to be the most important targets for waste policy. Finally, WTE plants are a very expensive way to save on climate change emissions.     

Transformational leadership and job performance: A social identity perspective

Drawing on social identity theory, this study provides a model explaining the underlying process through which transformational leadership influences creative behavior and organizational citizenship behaviors. Individual differentiation and group identification are proposed as social identity mechanisms reflecting the characteristics of personal and collective identity orientations that underpin the differential effects of transformational leadership behaviors on performance outcomes. The model is tested with data from a sample of 250 front-line employees and their immediate managers working in five banks in the People's Republic of China. Results of hierarchical linear modeling provide support for the model whereby group-focused and individual-focused transformational leadership behaviors exert differential impacts on individual differentiation and group identification. Furthermore, individual differentiation mediates the relationship between individual-focused transformational leadership and creative behavior, whereas group identification mediates the relationships between group-focused transformational leadership and OCBs toward individuals and groups. Implications for theory and practice are discussed and future research directions are outlined.     

Organizational capital,production factor resources,and relative firm size in strategic equity alliances

Access to complementary resources through strategic equity alliance networks is an important activity for both smaller and larger firms. In the literature, there is an intensive debate on the impact of alliance resources for smaller firms. We submit that the effect of alliance resources on the smaller firm financial performance depends on the attributes of these resources. Specifically, we argue that the attributes of partner organizational capital are negatively related and the attributes of partner production factor resources are positively related to the smaller firm financial performance. We test our theoretical framework by applying a longitudinal analysis to a dataset of 1730 firm-year observations of strategic equity alliances in the software industry in 25 countries over an 11-year period. We find support for our hypotheses, highlighting the critical importance of resource attributes for smaller firms in strategic equity alliance networks.     

Ultimate confusion: The economics of Julian Simon

This article argues that there are profound mistakes and exaggerations in Simon's influential and popular ideas. It discusses Simon's denial of resource finitude and his views that neither ecology nor entropy exists. Finally it looks at Simon's The Resourceful Earth as an attack on Global 2000.     

An analysis of factors affecting access to credit in Lesotho's smallholder agricultural sector

The agricultural sector in Lesotho is underperforming mainly due to the inability of smallholders to move from traditional agriculture to a more scientific and technology-based one. Among the challenges inhibiting the ability of smallholders to make the step up is access to financial services, especially credit. The purpose of this study was to examine the factors that may influence the ability of smallholders to access finance by making use of a logistic regression model within the principle component regression framework. The results revealed that the ability of smallholders to access finance, and the potential to make the transition towards a more scientific and technology-based agriculture sector, is influenced by the level of farm and non-farm income, remittances and pension, farm size, availability of family labour, land ownership, savings and repayment ability. The results present important information in terms of guiding institutional arrangements needed to improve credit availability in Lesotho.     

Measuring performance during crises and beyond: The Performance Promoter Score

Many organizations are curtailing or even abandoning performance management because of difficulties measuring performance and disruptions in performance-based pay due to the COVID-19 crisis. Contrary to this growing and troubling trend, we argue that it is especially important during the crisis to not only continue but also strengthen performance management to communicate a firm’s strategic direction, collect valuable business data, provide critical feedback to individuals and workgroups, protect organizations from legal risks, and retain top talent. To do so, we offer a solution to overcome the challenges associated with measuring performance during a crisis. Specifically, we extend and expand upon the well-established Net Promoter Score measure in marketing and introduce the Performance Promoter Score (PPS) to measure performance. We offer evidence-based recommendations for collecting PPS information for individuals, workgroups, and other collectives, computing a Net Performance Promoter Score (NPPS); using multiple sources of performance data, and using PPS for administrative and developmental purposes as well as to provide more frequent performance check-ins. PPS is a convenient, practical, relevant, and useful performance measure during a crisis such as the COVID-19 pandemic, but it is also an innovation that will be useful long after the pandemic is over.