IE University

About: IE University is a education organization based out in Segovia, Castilla y León, Spain. It is known for research contribution in the topics: Corporate governance & Context (language use). The organization has 527 authors who have published 1709 publications receiving 64682 citations.

A math-heuristic Dantzig-Wolfe algorithm for capacitated lot sizing

Abstract: The multi-item multi-period capacitated lot sizing problem with setups (CLST) is a well known optimization problem with wide applicability in real-world production planning problems. Based on a recently proposed Dantzig-Wolfe approach we present a novel math-heuristic algorithm for the CLST. The major contribution of this paper lies in the presentation of an algorithm that exploits exact techniques (Dantzig-Wolfe) in a metaheuristic fashion, in line with the novel trend of math-heuristic algorithms. To the best of the authors' knowledge, it is the first time that such technique is employed within a metaheuristic framework, with the aim of tackling challenging instances in short computational time. Moreover, we provide reasoning that the approach may be beneficial when additional constraints like perishability constraints are added. This also constitutes an important extension when looking at it from the view of solution methods.

Thinking like the state: Doxa and symbolic power in the accounting field in China

Abstract: Literature examining dynamics between the state and self-styled professional fields is well established and points towards the crucial interrelations between the two. However, this literature evinces an occidental orientation, largely privileging the notion of a state characterised by self-limiting, liberal ideology and that is captured by dominant interests. More recent work on Asia describes a different context within which to understand how the state influences both the structure of accounting fields and the behaviour of actors therein. We build upon this literature here by reporting the results of a detailed empirical study on the dynamics of the accounting field in China. Drawing on archival analysis and interviews with 63 regulators, state actors and accounting practitioners, we show that the state successfully exercises symbolic power in the implementation of state strategies. Conceptually, we argue that the state is a deep-rooted cultural phenomenon existing in the cognitive structures of key actors in the accounting field in China, thereby drawing attention to further reaching forms of state influence than have hitherto been recognised in extant literature on accounting fields. Specifically, we point towards the importance of doxa (Bourdieu, 1977, 1992, 2014), exemplified by the taken-for-granted principles of classification and ranking produced by the state, in the form of firms and individuals ‘thinking like the state’ as the basis of symbolic power in the accounting field in China. We also reflect on the limits of such power.

Neuroticism mediates the effect of p2rx7 on outcomes of mood disorders

Abstract: Background We previously reported an association between P2RX7 variant rs208294, diagnosis, and the longitudinal course of mood disorders. Here, we test whether the personality trait neuroticism mediates the effect of P2RX7 on the course of mood disorders. Methods Patients with DSM-IV mood disorder (256 with major depressive disorder and 168 with bipolar disorder [BD]) were diagnosed with semistructured interviews, genotyped, and followed up for a median of 60 (range 6–83) months. The primary outcome was the prospectively assessed proportion of time spent in any DSM-IV mood episode (time ill). Three types of genetic effect were tested in structural equations models: Model 1: genes directly affect outcome independent of neuroticism, Model 2: neuroticism mediates the effect of genes on outcome, and Model 3: neuroticism and the genetic variant interact in their effect on outcome. Results Neuroticism mediated the P2RX7 genetic effect on outcome. The T allele of rs208294 was associated with higher neuroticism, which in turn predicted a higher proportion of time spent in mood episodes (the bootstrap-based test of indirect effect, P = .02). There was no significant interaction between neuroticism and the genotype. Conclusion Neuroticism is likely to lie on the causal pathway between the rs208294 T variant and the adverse long-term course of major depressive and BDs. Depression and Anxiety 00:1-8, 2012. © 2012 Wiley Periodicals, Inc.

Small and Medium Size Enterprise Financing: A Note on Some of the Empirical Implications of a Pecking Order

Abstract: Asymmetric information models predict a 'pecking order' which reflects a combination of owner-manager preferences and external capital supply constraints whenever insiders know more about the true value of the firm's prospects than outsiders. The pecking order results in retained earnings being the most preferred source of finance, then debt and finally the issue of new shares to outsiders. Using a sample of 629 UK SMEs over the five-year period from 1990 to 1995 we find evidence consistent with a pecking order in which retained equity is preferred over debt. As expected, the evidence of a pecking order was particularly strong in respect of the closely-held firms in our sample.

Parental endowments versus business acumen: Assessing the fate of low‐tech, service‐sector spinouts

Abstract: Correspondence Richard A. Hunt, Department of Management, Pamplin College of Business, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061. Email: rickhunt@vt.edu Abstract Research Summary: In recent years, scholarship on intraindustry entrepreneurial spinouts has coalesced around a heredity-focused perspective, propounding the notion that spinouts from high-quality parent-firms outperform those emanating from low-quality parent-firms. This view has found strong support in high-tech sectors, but it is unclear whether parental lineage is a determinant of performance and survival in sectors exhibiting low-technological dynamism, especially when the locus of value creation stems from generalist rather than technical-specialist knowledge. Applying the knowledge spillover theory of entrepreneurship and jack-of-all-trades framework, we assess the fate of a complete population of 678 service-sector firms for the entire 32-year history of an industry. Our study offers explanatory mechanisms that more fully account for the non-hereditary success factors driving performance heterogeneity among entrepreneurial spinouts. Managerial Summary: In many industries, half or more of the firms are founded by former employees of existing companies (i.e., “entrepreneurial spinouts”). In high-tech sectors, these “spinouts” often appear to perform better than entrants without prior industry experience. Moreover, spinouts spawned by high-performing parent-firms tend to outperform spinouts from low-performing parents, suggesting that spinouts benefit from advantageous parental knowledge and capabilities. However, this does not seem to be Received: 20 March 2017 Revised: 16 March 2019 Accepted: 27 March 2019 Published on: 13 May 2019