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 .     

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.     

Influence of design on tourists’ recommendation intention: an exploratory study of fjord cruise boats

ABSTRACT

In this article we study the influences of esthetic, functional, and symbolic dimensions of design on attitude toward fjord cruise boats and intention to recommend using the product. Also, we argue for the importance of a product to blend in with the surroundings in which it is used – contextually congruent design. In two studies we find that aesthetic, functional and contextually congruent design has positive influences on attitude toward fjord cruise boats. Designers of fjord cruise boats should develop boats with designs that are congruent with the surroundings in which they will be used.     

The Political Economy of Trade Liberalization and Environmental Policy

A pressure group model where environmental and industry lobby groups offer political support in return for favorable pollution tax policies is used to explain and predict the equilibrium pollution tax in sectors protected by tariffs. The political economy effects of trade liberalization are investigated. The pollution tax is shown to decrease if the lobbying effort by the environmental lobby decreases more rapidly than by the industry lobby ceteris paribus. The level of political conflict falls with trade liberalization. Pollution may increase because of a reduction of the pollution tax, and tax revenues may fall simultaneously as pollution increases.     

Does investor recognition predict returns?

Merton [1987. A simple model of capital market equilibrium with incomplete information. Journal of Finance 42, 483–510] shows that stocks about which not all investors are informed should yield a return premium. This premium depends on the shadow cost of incomplete information which in turn depends on the shareholder base, relative market size, and idiosyncratic risk. Utilizing a comprehensive database of Swedish shareholdings, we demonstrate that stock returns are positively related to the shadow cost. We also find that the shareholder base is negatively related to returns when controlling for size and idiosyncratic risk. Zero-cost portfolios based on the shadow cost/shareholder base yield substantial trading profits that are never positively correlated with the market and are only modestly explained by the four-factor model.     

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.