A differencing test

This paper proposes and applies a test procedure for misspecification in a dynamic regression model with moving average errors. The test statistics are based on testing for unit roots in the moving average process when the model is deliberately overdifferenced.     

Watching Dutch Change: A Real Time Study of Variation and Change in Standard Dutch Pronunciation

The study investigates phonological variation and change in two varieties of standard Dutch: southern standard Dutch (spoken in Flanders, the northern part of Belgium) and northern standard Dutch (spoken in the Netherlands). A new source for studying language change in progress is introduced: archived recordings of radio broadcasts. The study covers the period from 1935 to 1993. Changes in progress are studied by a combination of insight and techniques from historical linguistics and sociolinguistics. The outcomes of analyzing separate linguistic variables are presented, but the focus of the analysis is on the presence of more general patterns of covariation within the set of linguistic variables and on the possibility of distinguishing (prototypical) temporal and community-based varieties of standard Dutch. The results reveal a pattern of divergence between the two varieties of standard Dutch. The southern variety remained more or less stable between 1935 and 1993. Northern standard Dutch, however, changed substantially.     

Robust optimization in distribution-based demand planning: a model for negotiation support

In this paper a model for negotiation support in tactical procurement planning is designed, which is based on a real planning problem from the liquid gas trade sector. The problem is modeled as an assignment problem and transformed into a robust form. Computational experiments using data from a practice partner are presented to demonstrate the effective decision support of our approach.     

Rota-Risk-Profile-Analysis

Abstract

In this article an update of the Rota-Risk-Profile-Analysis (RRPA) is presented. This RRPA is based on 9 rota-risk criteria that are central to a more encompassing rota theory. The RRPA allows coherent assessment of the physical and social risks of a working-time schedule (rota). comparison of schedules with one another in quantitative terms and interpretations of possible differential effects more adequately. First, a closer look at the instrument-a computer program-is taken. Afterwards the criteria and their way of implementation are discussed briefly. To get an impression of the way that RRPA functions an example will be given by applying the instrument to the working rotas from a study on shiftwork in the Netherlands.     

Institutions and Policies for Pro‐poor Agricultural Growth

Global experience with pro‐poor growth and empirical work spanning India, Malawi and Zimbabwe demonstrates the importance of agricultural growth for poverty reduction in poor rural areas, while also pointing to the need for complementary non‐farm sector growth. Theoretical arguments, historical evidence and livelihoods modelling in poor medium‐potential rural economies suggest that, contrary to thinking dominating much of current development policy, subsidies to relieve critical seasonal credit and cash restraints and reduce market and input supply uncertainties need to help in ‘kick‐starting’ agricultural markets if increased smallholder productivity in food‐grains is to drive rural non‐farm growth. Establishing the base conditions for these to work, designing and implementing them to be effective, and then phasing them out are major challenges facing policymakers.     

以后期维特根斯坦为导向探讨宗教理解的语言哲学前提

哈贝马斯主张,为使宗教进入公共领域,必须对它们的文本进行分类和翻译,从而把它们的命题含义与它们的神圣外衣加以分离,以便使它们的意义成为公众可理解的.作者以后期维特根斯坦的哲学为基础进行论证,认为宗教语言不同于科学语言,因为它们涉及不同的生活形式、处理不同的主题,宗教所关心的是对作为整体的世界的生活态度,而科学则对作为物的总和的世界加以说明,因而把宗教的话语翻译成命题的表达方式的做法既无必要也无助益.     

Formulating corporate objectives and strategies

In this article Hans G. Krijnen sets out to illustrate part of the strategic policy-making of a firm. he uses three economic basic-aims and three groups of strategies. The basic-aims have been linked with the strategies which, in the author's opinion, contribute most towards the realisation of meaningful goals. He believes it should be possible to deduce some broad guidelines from the relationships mentioned, to be able to make a choice among a number of new product–market combinations.     

Is Land Grabbing Always What It Is Supposed to Be? Large‐scale Land Investments in sub‐Saharan Africa

The term ‘land grabbing’ has recently attracted widespread, and sometimes agitated, attention, and its literature grows at exponential speed. At the same time, the concept remains little understood concerning both its meaning, magnitude and consequences and even who the grabbers are. Different attempts to define land grabbing appear to reflect ideological lenses and pre‐defined positions rather than a genuine ambition to find out what is actually going on. Based on a comprehensive literature review, this article aims at presenting a more nuanced understanding of this disputed topic and therefore a less biased account of what land‐grabbing and/or private investments in land represent.     

The Influence of Divorcing Mothers' Demeanor on Custody Evaluators' Assessment of Their Domestic Violence Allegations

A gap exists between empirical evidence demonstrating the risks posed by domestic violence (DV) and the weight that evidence is given by custody evaluators. This gap may result from common beliefs about DV that diminish or deny its seriousness, which include that mothers often make false allegations to gain advantage and that DV and high conflict are synonymous and do not require differential approaches. Using a multiple segment factorial vignette design, we systematically assessed how these beliefs influenced custody evaluators' (N = 603) recommendations and judgments of the believability of allegations. Mother's demeanor (i.e., hostile vs. pleasant) was the most consistent predictor of evaluators' recommendations and judgments of credibility. Findings have implications for providing research-based education and training for evaluators.     

Implementation of maximin efficient designs in dose‐finding studies

This paper considers the maximin approach for designing clinical studies. A maximin efficient design maximizes the smallest efficiency when compared with a standard design, as the parameters vary in a specified subset of the parameter space. To specify this subset of parameters in a real situation, a four‐step procedure using elicitation based on expert opinions is proposed. Further, we describe why and how we extend the initially chosen subset of parameters to a much larger set in our procedure. By this procedure, the maximin approach becomes feasible for dose‐finding studies. Maximin efficient designs have shown to be numerically difficult to construct. However, a new algorithm, the H‐algorithm, considerably simplifies the construction of these designs. We exemplify the maximin efficient approach by considering a sigmoid Emax model describing a dose–response relationship and compare inferential precision with that obtained when using a uniform design. The design obtained is shown to be at least 15% more efficient than the uniform design. © 2014 The Authors. Pharmaceutical Statistics Published by John Wiley & Sons Ltd.