Procuring complex performance in construction: London Heathrow Terminal 5 and a Private Finance Initiative hospital

This paper takes as its starting point the fact that complex projects, interpreted as multiple dependent interactions between many stakeholders over time, challenge traditional procurement practices based on the serial purchase of discrete components. The paper examines how the procurement management of such projects – procuring complex performance – can be conducted. The paper utilises two contrasting case study examples of high-profile UK construction project procurement. The findings suggest that the choice of mechanisms or interfaces for the governance of upstream supply relationships critically relates to subsequent performance. The theoretical contribution is a fusion of procurement literature with the influential CoPS literature.     

Bayesian semiparametric stochastic volatility modeling

This paper extends the existing fully parametric Bayesian literature on stochastic volatility to allow for more general return distributions. Instead of specifying a particular distribution for the return innovation, nonparametric Bayesian methods are used to flexibly model the skewness and kurtosis of the distribution while the dynamics of volatility continue to be modeled with a parametric structure. Our semiparametric Bayesian approach provides a full characterization of parametric and distributional uncertainty. A Markov chain Monte Carlo sampling approach to estimation is presented with theoretical and computational issues for simulation from the posterior predictive distributions. An empirical example compares the new model to standard parametric stochastic volatility models.     

Analysis of SMEs partner proximity preferences for process innovation

This paper explores small and medium enterprises’ (SMEs) proximity preferences when selecting partners for collaborative process innovation. Drawing on a survey of 362 Danish SMEs, we address four partner proximity characteristics: geographic, cognitive, organizational, and social. The results show that SMEs prioritize geographic openness over regional clustering. Furthermore, to simultaneously facilitate collaboration and ensure innovation, firms tend to collaborate with partners that are characterized by cognitive similarity at a technological level and knowledge distance at a market level. Technological proximity is also found to be more relevant than social proximity when it comes to bridging the potential geographic and market distance between the collaborative partners. Finally, the results indicate that the tendency of organizational proximity to facilitate informal interactions with partners enhances process innovation only at two of four process innovation levels. Thus, the results highlight the fact that the value of partner proximity characteristics change with the level of process innovation considered.     

von Thünen: Capital,Production Functions,Marginal Productivity Wages,and the Natural Wage

This paper puts seminal contributions to theory of production functions and maximization of explicit quantitative objective functions by Johann Heinrich von Thünen into a systematic historical perspective. We show that his comprehensive ‘Tableau Economiques’ do imply two exact parametric production functions. Moreover, the renowned ‘geometric mean wage’ formula is restated as an exact CES marginal labor productivity wage for σ = 2. We review four alternative modes of normative (natural) wage calculations without an explicit production function, and conclude that von Thünen's natural wage differentiation formulas are bona fide alternatives for deriving the natural wage formula.     

Comparing family changes in two rural areas of Kenya: Past legacies and present realities

ABSTRACT

Fertility in Kenya declined from total fertility rate (TFR) 6.7 to 4.6 between 1989 and 2008/09. Initially, Western and Coast Provinces returned figures above and below the national average with TFR 8.1 and 5.4 respectively. Then fertility in Western Province declined substantially to TFR 5.6 while in Coast Province the decline was modest to TFR 4.8, above the national average in both provinces. I shall scrutinise this development by examining two rounds of qualitative case studies in rural villages in the two provinces, first in 1988–90 with a follow up in 2011. The analysis revealed that over time fewer children were born in the Western villages, but more in the Coast villages. The hypothesis is that differences in cultural (patriarchy and a mix of matriarchy and patriarchy) and religious (Christian and Muslim) legacies are crucial to understanding such disparities in childbearing. Attention is given to marriage, gender relations and female education.     

Beyond Good and Evil: The Adiaphoric Company

In this article, six demoralising processes in the context of the company are identified. These processes promote a realm of ‘being-with’, in which outcomes of human interaction are evaluated on rational grounds, and on whether or not a particular action accorded with stipulated ethical rules. Thereby the realm of ‘being-for’, in which individuals are supported to take increased responsibility, is marginalized. The conclusion made is that not only do the demoralizing processes systematically produce moral distance between humans, which weakens individual spontaneous outbursts of sympathy to take increased moral responsibility, they also promise to release individuals from their moral ambivalence by declaring organised action morally indifferent. Organisational action is, in other words, declared as adiaphoric – beyond good and evil.     

The end of the Ghent system as trade union recruitment machinery?

During the past 15 years, membership rates in many unions have been declining in Denmark, Finland and Sweden. Reasons for this decline may be similar to what has happened in other countries—occupational change and neoliberal ideology and policies—but in the three Ghent countries, changes in the unemployment insurance system may also have affected trade union membership losses. The major part of the decline has taken place in a period of low unemployment, which may have reduced the employee incentive to take unemployment insurance, but will increasing unemployment rates mean more trade union members? At least for the LO‐ and SAK‐affiliated trade unions, it seems that trade union independent unemployment funds may be alternatives for workers who take unemployment insurance.     

The use of efficient estimates in multiple tests for goodness of fit

Abstract

Let be Pearson's statistics for testing goodness of fit in various marginal distributions associated with a categorized array of N objects. This study is concerned with disturbances in the limiting joint distribution of when maximum likelihood estimates from the original ungrouped data are used instead of the usual estimates from the cell frequencies after grouping. Under regularity conditions the limiting distributions of , and are shown to satisfy for each positive {c^b1 x ... x c^bT }, where A(c) is the Cartesian product set A(c) = (0, c^b1 ] x ... x (0, c^bT ]. The limiting distributions are characterized in terms of partitioned Wishart matrices having unit rank and parameters as appropriate. These results are extensions of work by Chernoff and Lehmann (1954) and Jensen (1974).