Parisian types of ruin probabilities for a class of dependent risk-reserve processes

For a rather general class of risk-reserve processes, we provide an exact method for calculating different kinds of ruin probabilities, with particular emphasis on variations over Parisian type of ruin. The risk-reserve processes under consideration have, in general, dependent phase-type distributed claim sizes and inter-arrivals times, whereas the movement between claims can either be linear or follow a Brownian motion with linear drift. For such processes, we provide explicit formulae for classical, Parisian and cumulative Parisian types of ruin (for both finite and infinite time horizons) when the clocks are phase-type distributed. An erlangization scheme provides an efficient algorithmic methods for calculating the aforementioned ruin probabilities with deterministic clocks. Special attention is drawn to the construction of specific dependency structures, and we provide a number of numerical examples to study its effect on probabilities.     

Analysing the correlation between social network analysis measures and performance of students in social network-based engineering education

Social network-based engineering education (SNEE) is designed and implemented as a model of Education 3.0 paradigm. SNEE represents a new learning methodology, which is based on the concept of social networks and represents an extended model of project-led education. The concept of social networks was applied in the real-life experiment, considering two different dimensions: (1) to organize the education process as a social network-based process; and (2) to analyze the students’ interactions in the context of evaluation of the students learning performance. The objective of this paper is to present a new model for students evaluation based on their behavior during the course and its validation in comparison with the traditional model of students’ evaluation. The validation of the new evaluation model is made through an analysis of the correlation between social network analysis measures (degree centrality, closeness centrality, betweenness centrality, eigenvector centrality, and average tie strength) and the grades obtained by students (grades for quality of work, grades for volume of work, grades for diversity of work, and final grades) in a social network-based engineering education. The main finding is that the obtained correlation results can be used to make the process of the students’ performance evaluation based on students interactions (behavior) analysis, to make the evaluation partially automatic, increasing the objectivity and productivity of teachers and allowing a more scalable process of evaluation. The results also contribute to the behavioural theory of learning performance evaluation. More specific findings related to the correlation analysis are: (1) the more different interactions a student had (degree centrality) and the more frequently the student was between the interaction paths of other students (betweenness centrality), the better was the quality of the work; (2) all five social network measures had a positive and strong correlation with the grade for volume of work and with the final grades; and (3) a student with high average tie strength had a higher grade for diversity of work than those with low ties.     

Relationships among functional units and new product performance: The moderating effect of technological turbulence

Though there has been plenty of research into new product success factors, only a few studies have tried to analyse whether these factors are important in different settings. In this study, we propose and test a model that links physical proximity among functional units, presence of product champions, cross-functional harmony, and new product program performance. The moderating effects of perceived technological turbulence on relationships between new product performance and its antecedents are also tested. Our results, obtained from 151 managers working for Spanish firms with a R&D department, confirm the different impact of these factors on the three measures of performance considered and also on two groups of organizations, the ones that perceive high technological turbulence and the ones that perceive low technological turbulence.     

The responsibility of tourism in traffic congestion and hyper-congestion: A case study from Mallorca, Spain

This paper explores the relationship between tourism and traffic congestion and hyper-congestion using the case study of Mallorca (Spain), one of the most important resort destinations in the Mediterranean. After discussing different proxies to capture the associated problems to road traffic congestion, different time series models are estimated including considering the days of the week, holidays and meteorological determinants jointly with a daily indicator of tourist population pressure. Results show how the tourist pressure variable is an important determinant in explaining the different alternative indicators of traffic congestion and hyper-congestion, for different roads. Hence it is possible to classify the roads in terms of usage by tourists in order to anticipate the levels of traffic intensity, especially during peak periods.     

Salespersons' self‐monitoring: Direct,indirect, and moderating effects on salespersons' organizational citizenship behavior

Research into self‐monitoring (SM) confirms that people differ when it comes to how much they observe, regulate, and control themselves in certain social settings and interpersonal relationships. Research also shows that high self‐monitors, as opposed to low self‐monitors, perform better in boundary‐spanning positions that require good communication skills. Therefore, it is a matter of interest to analyze the effects of SM on salespeople's behavior, and on organizational citizenship behavior (OCB) in particular. It has been proven that this behavior affects the performance of organizations and influences supervisors' evaluations of subordinates. Although a number of studies examine the antecedents of OCB, certain relationships have yet to be looked at. This study proposes and tests a model stating that salespersons' OCB is determined by salespersons' SM, with this relationship being mediated by salespersons' person–organization (PO) fit and job satisfaction. This study also analyzes the moderating effect of salespersons' SM on PO fit to job satisfaction relationships, as well as on job satisfaction to OCB relationships. Data collected from 122 supervisor–salesperson dyads in 35 companies across 9 different sectors confirm the proposed model. In fact, the results show that SM, both directly and indirectly, has a positive effect on OCB due to the way in which it influences salespersons' PO fit and job satisfaction. The results also confirm the moderating role of SM in the relationships between job satisfaction and OCB, and between PO fit and job satisfaction. Certain implications of this study, as well as directions for future research, are also addressed. © 2009 Wiley Periodicals, Inc.     

Natural Resources,Wage Growth and Institutions – a Panel Approach

This paper exam,ines the effect of nat,u,ral resource export depen,dence and fis,cal respon,si,bil,ity on wage growth, which is derived from the labour first‐order con,di,tion and esti,mated using a panel growth‐account,ing frame,work. Using annual data, the study accounts for the var,i,abil,ity of resource rev,e,nues, one of the major dif,fi,cul,ties of man,ag,ing these resources. The con,trol vari,ables include the most cru,cial growth fac,tors. Due to insuf,fi,cient annual data, human cap,i,tal is only con,sid,ered inside wages as in many endog,e,nous growth mod,els. We esti,mate the influ,ence on real wage growth aris,ing from the growth‐impacts of nat,u,ral resources through labour and cap,i,tal effi,ciency while con,trol,ling for fis,cal respon,si,bil,ity, which proves a suit,able proxy for pol,i,cies and insti,tu,tions in a sin,gle‐panel case. The results show that respon,si,ble fis,cal pol,icy, assessed by the bud,get bal,ance, pre,vents (var,i,able) dif,fuse and point‐source resources from hin,der,ing real wage growth (through labour effi,ciency), a result also sig,nif,i,cant in a sub‐sam,ple of un‐free coun,tries. The hypoth,e,sis of a resource curse work,ing through insti,tu,tions and reflected on real wage growth holds for resource export shares, but not adjust,ing for re‐expor,ta,tion. Over,all, resource effects are jointly insig,nif,i,cant, even though point‐source resources show a positive impact through cap,i,tal effi,ciency.     

Antecedents of Taiwan Chinese Consumers’ Purchase Intentions Toward U.S.- and Japanese-Made Household Appliances

ABSTRACT

The purpose of this article is to understand the factors influencing Taiwan's Chinese consumers’ purchase intentions toward U.S. and Japanese household appliances. The authors attempt to develop and test a comprehensive model linking such purchase intentions to several constructs including Taiwan Chinese consumers’ openness to foreign cultures, consumer nationalism, product familiarity, traditional cultural values orientation, and product-country image. The result of analysis using structural equation modeling shows that consumer nationalism has a strong indirect effect on purchase intention via the product-country image construct. Taiwan Chinese consumers’ traditional cultural values orientation and openness to foreign cultures have direct effects on consumer nationalism and, hence, are important antecedents in explaining the purchase intentions toward foreign-made goods by Taiwan Chinese consumers. With the growing importance of the Chinese domestic market, this study provides international marketing managers with practical implications in important areas such as market segmentation, branding strategy, and market research and practices in the Chinese consumer market.     

An economic analysis of farm forestry as a means of controlling dryland salinity

Large areas of agricultural land under conventional crops and pastures are at risk of dryland salinisation in Australia. The salinisation problem can be controlled by strategic and large-scale planting of trees; however, farm forestry enterprises evaluated with conventional discounting techniques do not generally rank as an attractive alternative to annual crops on productive land. In this article, an optimal control model that explicitly accounts for decline or improvement in land quality over a period of 40 years is presented. The optimal area planted to trees and the optimal groundwater-table trajectory through time are determined under a variety of scenarios. Implications of the results for policy design are discussed.     

The high cost of discrimination

Equal employment laws are being enforced with increasing strictness. To avoid costly litigation, a manager should review his personnel structures to eliminate discriminatory practices.     

INSTITUTIONS,ECONOMICS AND THE DEVELOPMENT QUEST

Institutions crucial for the analysis of how agents deal with uncertainty have been gaining increasing relevance on the economic research agenda. In this paper, we analyze the institutional literature aiming to explain why this perspective obtains better results than others in development economics. In particular, we stress the relevance of New Institutional Economics as an adequate framework for a broad understanding of development issues.