On the test of the hypothesis that the probability of an event is contained within given limits

Asbtract

The hypernormal (or Lexian) frequency function can be defined by the integral where θ(p) is the frequency (or density) function of p defined in the interval. We have, of course, that and that .     

FASHION AND THE GOVERNANCE OF KNOWLEDGE IN A TRADITIONAL INDUSTRY: THE CASE OF THE FOOTWEAR SECTORAL INNOVATION SYSTEM IN THE NORTHERN REGION OF PORTUGAL

Abstract

The paper deals with the footwear industry as a sectoral innovation system. It particularly focuses on the incidental role of fashion in restructuring and innovation within the footwear production. The importance taken by fashion leads towards a more complicated reading of the recent changes of this industry, regarding its organization, innovation processes, and its mode of technological knowledge governance. More especially, within the traditional footwear industry, low levels of knowledge appropriability were combined with low cumulativeness in firms with low-innovative activity. However, as fashion was incorporated in the footwear industry, technological knowledge governance evolves towards higher cumulativeness at least at the industry level. This contribution discusses in detail the pervasiveness of fashion onto the footwear industry. It especially shows how the numerous agents involved in the fashion knowledge production and their geographical concentration allow for increasing returns when they align well with knowledge cumulativeness at the industry level. It also reveals that the renewed knowledge base of fashion exhibits a higher degree of tacitness and typically develops along an external localized knowledge base.     

Empirical approach to the analysis of university student absenteeism: proposal of a questionnaire for students to evaluate the possible causes

Works on student absenteeism in the universities have not been preferential for the authors in the field of educational research. Usually, what has been made is an approach to the available absenteeism data as an intervening variable or as a variable characteristic of the educational process, but not as a dependent variable in the strict sense of the term. In this work, we intend to make an empirical approach to the possible reasons of student absenteeism. There is a double point of view: the students’ and the professors’; the reasons that justify it according to its protagonists are studied. This paper focuses on the six university degrees taught at the School of Economy and Business of the University of Barcelona (Facultat d’Economia i Empresa de la Universitat de Barcelona). An “ad-hoc” questionnaire has been prepared and the opinions of 1,162 undergraduates have been analyzed. The reasons given by each population differ in hierarchy and motivations.     

Aligning organisational interests in designing rail-wagon tracking

The paper investigates the design and implementation of rail-wagon tracking to align the interests of rail-track owners, rail operators and third-party logistics service providers. The investigation identifies design actions to enable beneficial uses for the different rail-wagon tracking participants in a railway logistics system. Design science is used as the overall research approach. The findings are derived in the context of three organisations involved in an automotive railway logistics system. Data on the perceptions and interests of the parties is collected using the case-study methodology. Our findings indicate how rail-wagon tracking can be used to improve the efficiency of rail transport operators’ maintenance operations and potentially decrease wear and tear on rail tracks owned by the government authority. These anticipated benefits have motivated the transport authority in the case setting to make investments in more intelligent infrastructure, providing a platform for future material-flow tracking by logistics companies.     

Growing profitable or growing from profits: Putting the horse in front of the cart?

Firm growth is almost universally portrayed as a good thing, and is commonly used as a measure of success. Applying resource-based reasoning, we argue that growth is often not a sign of sound development. Specifically, we hypothesize that firms which grow without first securing high levels of profitability tend to be less successful in subsequent periods compared to firms that first secure high profitability at low growth. Empirical tests using two large, longitudinal data sets confirm that the profitable low growth firms are more likely to reach the desirable state of high growth and high profitability. In addition, they have a decreased risk of ending up performing poorly on both performance dimensions compared with firms starting from a high growth, low-profitability configuration. The results suggest that academics, managers, investors and policy-makers may benefit by adopting a more nuanced view of firm growth that explicitly incorporates its intricate relationship with profitability.     

International experience,growth aspirations,and the internationalisation of new ventures

The aim of this paper is to investigate the impact of the breadth and depth of international experience on subsequent new venture internationalisation and to what extent growth aspirations moderate these relationships. Drawing upon previous literature on international new ventures, human capital and growth aspirations, we tested our hypotheses using longitudinal data from the Comprehensive Australian Study of Entrepreneurial Emergence (CAUSEE). Our results support the hypothesis that breadth of international experience has a positive impact on internationalisation. Depth of international experience on its own does not predict subsequent internationalisation activities. However, results support our hypothesis that the interplay of a high growth aspiration and depth of international experience has a positive effect on internationalisation activities. Our study contributes to the research stream on new venture internationalisation by distinguishing between breadth and depth of international experience, suggesting that these dimensions are differentially linked to internationalisation. Further, we test for interaction effects between international experience and growth aspirations. We thereby add to the knowledge by illustrating that some types of human capital are only utilised when accompanied by growth aspirations.     

Pre-auction offers in asymmetric first-price and second-price auctions

We consider first-price and second-price auctions with asymmetric buyers, and examine whether pre-auction offers to a subset of buyers are profitable. A single offer is never profitable prior to a second-price auction, but may be profitable prior to a first-price auction. However, a sequence of offers is profitable in either type of auction. In our model, suitably chosen pre-auction offers work because they move the assignment when bidder valuations are “near the top” closer to the optimal, revenue-maximizing assignment.     

The use of imagery in statistical reasoning by university undergraduate students: a preliminary study

Many students have difficulty in grasping several concepts that are related to the solution of statistical problems. The bibliography reports how the ability of students to solve problems can be affected by the mode of the statistical problem presentation: verbal–numerical and pictorial–graphical. The dual-coding theory predicts that the graphical representation mode should enhance students’ statistical reasoning. Solving these problems requires the building, by the subjects, of a mental model, which in turn relies on visuo-spatial processing. To test this hypothesis we analysed how the ability to solve problems of 473 undergraduate students is affected by the mode of the statistical problem presentation. The study used a quasi-experimental mixed design to explore how the student’s performance is related to visuo-spatial and numerical abilities, statistical expertise, time pressure and problem representation mode (verbal/pictorial). Data analysis, based on the Hierarchical Loglinear Model and then the Logit Model, highlighted that the effect of facilitation, induced by the graphical presentation mode, would seem more likely to occur in inexperienced subjects with high visuo-spatial competence.     

Confirmatory factor analysis with missing data in a small sample: cognitive reserve in people with Down Syndrome

Quality & Quantity - The presence of missing data and small sample sizes are very common in social and health sciences. Concurrently to present a methodology to solve the small sample size and...     

Market‐specific Sunk Export Costs: The Impact of Learning and Spillovers

Firms may face sunk costs when entering an export market. Previous studies have focused on global or country‐specific sunk export costs. This study analyses the importance of market‐specific sunk export costs (defining ‘market’ as a product–country combination). We also study how market‐specific export costs can be affected by various kinds of learning and spillover effects. We use firm‐level panel data for Norwegian seafood exports distributed on products and countries. The results lend support to the hypothesis of market‐specific sunk costs. We also find evidence of learning and spillover effects, particularly within the same product group.