Information disclosure,CEO overconfidence,and share buyback completion rates

An open market share buyback is not a firm commitment, and there is limited evidence on whether firms repurchase the intended shares. Unlike US studies, we use data from unique UK regulatory and disclosure environment that allows to accurately measure the share buyback completion rates. We show that information disclosure and CEO overconfidence are significant determinants of the share buyback completion rate. In addition, we find that large and widely held firms that conduct subsequent buyback programs and have a past buyback completion reputation exhibit higher completion rates. Finally, we assess whether other CEO characteristics affect buyback completion rates and find that firms with senior CEOs who hold external directorships and have a longer tenure as CEO are more likely to complete the buyback programs. In sum, our results suggest there is a clear relationship between information disclosure, CEO overconfidence, and buyback completion rates.     

Risk management in the energy markets and Value-at-Risk modelling: a hybrid approach

This paper proposes a set of Value-at-Risk (VaR) models appropriate to capture the dynamics of energy prices and subsequently quantify energy price risk by calculating VaR and expected shortfall measures. Amongst the competing VaR methodologies evaluated in this paper, besides the commonly used benchmark models, a Monte Carlo (MC) simulation approach and a hybrid MC with historical simulation approach, both assuming various processes for the underlying spot prices, are also being employed. All VaR models are empirically tested on eight spot energy commodities that trade futures contracts on the New York Mercantile Exchange (NYMEX) and the constructed Spot Energy Index. A two-stage evaluation and selection process is applied, combining statistical and economic measures, to choose amongst the competing VaR models. Finally, both long and short trading positions are considered as it is of utmost importance for energy traders and risk managers to be able to capture efficiently the characteristics of both tails of the distributions.     

Exact computation of max weighted score estimators

We show that exact computation of a family of ‘max weighted score’ estimators, including Manski’s max score estimator, can be achieved efficiently by reformulating them as mixed integer programs (MIP) with disjunctive constraints. The advantage of our MIP formulation is that estimates are exact and can be computed using widely available solvers in reasonable time. In a classic work-trip mode choice application, our method delivers exact estimates that lead to a different economic interpretation of the data than previous heuristic estimates. In a small Monte Carlo study we find that our approach is computationally efficient for usual estimation problem sizes.     

Volunteer tourists in the field: A question of balance?

This paper is based on a study of volunteering at a children’s refuge in Mexico. This study explored the relationship between volunteers, their volunteering experiences and the behaviour that resulted. The study findings revealed volunteers were provided with the opportunity to make a positive contribution to the every-day lives of the children at the children’s home. However the findings also demonstrated that the volunteering experience consisted of much more than just the work duties carried out there, as volunteers also undertook tourist activities. Living in shared accommodation in walking distance from the busy tourist resort of Puerto Vallarta, the volunteers were faced with the difficult task of balancing commitment to their work duties at the children’s home with the lure of more hedonistic pursuits. This balancing act raises questions about the management of volunteer tourists.     

Inference of Dynamic Generalized Linear Models: On-Line Computation and Appraisal

The purpose of this paper is to provide a critical discussion on real-time estimation of dynamic generalized linear models. We describe and contrast three estimation schemes, the first of which is based on conjugate analysis and linear Bayes methods, the second based on posterior mode estimation, and the third based on sequential Monte Carlo sampling methods, also known as particle filters. For the first scheme, we give a summary of inference components, such as prior/posterior and forecast densities, for the most common response distributions. Considering data of arrivals of tourists in Cyprus, we illustrate the Poisson model, providing a comparative analysis of the above three schemes.     

The use of negotiation strategies among recreational participants with different involvement levels: the case of recreational swimmers

This paper is aimed to segment recreational swimmers according to their involvement level, profile the involvement groups according to demographic variables, and further test the role of negotiation strategies in the development of swimming involvement. Two hundred and sixty (N?=?260) recreational swimmers participated in the study and completed Kyle et al.'s three-facet involvement scale and Alexandris et al.’s five-dimension leisure negotiation scale. The results of cluster analysis revealed three distinct involvement groups: high, medium and low involved recreational swimmers. The high involved group consisted mainly of females, middle-aged and married individuals; the medium involved group did not have a clear demographic profile, while the low involved group consisted mainly of males and young individuals. The three involvement groups had statistical significant scores in all the five negotiation strategy dimensions, with the high involved individuals having the highest scores and the low involved individuals having the lowest ones. These results provide empirical support for the negotiation proposition, which was developed by Jackson, Crawford, and Godbey. They further contribute to the existing leisure literature by showing how demographic segmentation can be used in combination with psychographic variables in order to profile groups of participants.     

Profitability and Media Advertising in Greek Food Manufacturing Industries

The effect of advertising intensity in four media(television, radio, newspapers and magazines) on profitability is examined in this paper. Aprofitability model is tested using a unique 1993–1996panel data set of 350 Greek food manufacturing firms.Fixed effects results for the full model show thatonly television advertising increases profitabilitysignificantly. The results for eight major foodcategories estimated separately show importantdifferences between consumer and producer groups;television advertising effects on profitability arepositive and significant only in the consumerindustries where television advertising intensity ishigh. These findings show that television is the onlymedia where persuasive advertising exists in Greekfood manufacturing firms.     

Rural nonfarm employment and farming: household-level linkages

This article introduces the articles in Agricultural Economics , vol. 40 no. 2 (March 2009). First, we introduce their objectives in a brief review of existing literature on developing country trends in rural income diversification, in particular rural nonfarm employment (RNFE) and its impact on farm technology choice in crops and livestock, and thus on agricultural modernization and diversification. Then we preview the key points of the articles, which use distinctive primary datasets from Albania, Bulgaria, China, India, Mexico, Nigeria, the Philippines, Senegal, and Vietnam to document the impacts of RNFE and their implications for farm technology and farm activity.     

Temporary Separations and Firm Size in the German Labour Market

We estimate the duration of out-of-work periods in the German labour market from 1980–90 and their relationship with employment protection legislation. We distinguish between Employment Interruptions that are legally protected and ordinary Layoffs. We investigate the question of whether the size of employer has an impact on the choice of the type of temporary separation. We find that firm size does matter, in both the type and the duration of temporary separations, and we examine the complex re-hiring process.