Age,employability and the role of learning activities and their motivational antecedents: a conceptual model

In today's time of demographic change and rapid innovation, age and employability as well as the role of learning and development are high on the agenda of human resource managers and chief learning officers. However, existing research has failed to integrate these concepts in a clear model and offers little explanation of how the concepts may be linked exactly. In this conceptual paper we show how chronological age, despite its poor characteristics as a predictor, might still affect employability indirectly. Specifically, we propose that employees' motivation – in terms of future time perspective and goal orientation – and formal and informal learning activities need to be considered. Since an individual's chronological age cannot be changed, it is important to recognize these mediating variables, which may be targeted more easily by human resource development or age management initiatives.     

Organizational political climate: Shared perceptions about the building and use of power bases

Organizational politics continues to be acknowledged as a real and important dimension of organizational functioning. Most research has focused on ‘perceptions of organizational politics’ where organizational politics is conceptualized negatively and its relationship with detrimental individual and organizational outcomes is demonstrated. We argue that organizational politics can be conceptualized as a multi-dimensional climate level construct and that ‘organizational political climate’ can be both functional and dysfunctional. We propose and explain a four dimensional model of organizational political climate informed by existing theoretical perspectives on power bases. The four key dimensions are represented by the building and use of personal power, positional power, connection power and informational power. We also highlight the need for a comprehensive measure of organizational political climate which is underpinned by the four dimensions and which enables an assessment of the extent to which the organizational political climate is functional and/or dysfunctional. In summary, we recommend that HR practitioners seek to understand the functional and dysfunctional dimensions of organizational political climate and implement practices to foster a positive political climate. We overview practical implications for HR managers and suggest a future research agenda.     

Labor market integration policies and the convergence of regions: the role of skills and technology diffusion

We study the role of different labor market integration policies on economic performance and convergence of two distinct regions in an agent-based model. Production is characterized by a complementarity between the quality of the capital stock and the specific skills of workers using the capital stock. Hence, productivity changes in a region are influenced both by the investment of local firms in high quality capital goods and by the evolution of the specific skill distribution of workers employed in the region. We show that various labor market integration policies yield, via differing regional worker flows, to distinct regional distributions of specific skills. Through this mechanism, relative regional prices are affected, determining the shares that the regions can capture from overall consumption good demand. There occurs a trade-off between aggregate output and convergence of regions with closed labor markets resulting in relatively high convergence but low output, and more integrated labor markets yielding higher output but lower convergence. Furthermore, results differ substantially in several respects as distinct labor market opening policies are applied.     

Global health resource utilization associated with pacemaker complications

Aim: To estimate health resource utilization (HRU) associated with the management of pacemaker complications in various healthcare systems.

Methods: Electrophysiologists (EPs) from four geographical regions (Western Europe, Australia, Japan, and North America) were invited to participate. Survey questions focused on HRU in the management of three chronic pacemaker complications (i.e. pacemaker infections requiring extraction, lead fractures/insulation breaches requiring replacement, and upper extremity deep venous thrombosis [DVT]). Panelists completed a maximum of two web-based surveys (iterative rounds). Mean, median values, and interquartile ranges were calculated and used to establish consensus.

Results: Overall, 32 and 29 panelists participated in the first and second rounds of the Delphi panel, respectively. Consensus was reached on treatment and HRU associated with a typical pacemaker implantation and complications. HRU was similar across regions, except for Japan, where panelists reported the longest duration of hospital stay in all scenarios. Infections were the most resource-intensive complications and were characterized by intravenous antibiotics days of 9.6?13.5 days and 21.3?29.2 days for pocket and lead infections respectively; laboratory and diagnostic tests, and system extraction and replacement procedures. DVT, on the other hand, was the least resource intensive complication.

Limitations: The results of the panel represent the views of the respondents who participated and may not be generalizable outside of this panel. The surveys were limited in scope and, therefore, did not include questions on management of acute complications (e.g. hematoma, pneumothorax).

Conclusions: The Delphi technique provided a reliable and efficient approach to estimating resource utilization associated with chronic pacemaker complications. Estimates from the Delphi panel can be used to generate costs of pacemaker complications in various regions.     

Fads or bubbles?

This paper tests between fads and bubbles using a switching regression to distinguish between competing models. Two main features of the bubbles model distinguish it from the fads model. First, the bubbles model implies that returns are drawn from regimes which differ in the way returns vary with deviations from fundamental prices. Second, the bubbles model implies that deviations from fundamental price will help predict regime switches. Using US data for 1926–89, we find evidence which is consistent with the fads model even when we allow for variation in expected dividend growth rates and expected discount rates. However, the restrictions which the fads model implies for a more general switching-regression specification are rejected. The rejections point in the direction of the bubbles model, although not all of the implications of the bubbles model are supported by the data. First Version Received: October 2000/Final Version Received: October 2001     

Sequential vs. simultaneous contributions to public goods: Experimental evidence

We report an experiment comparing sequential and simultaneous contributions to a public good in a quasi-linear two-person setting. In one parameterization we find that overall provision is lower under sequential than simultaneous contributions, as predicted, but the distribution of contributions is not as extreme as predicted and first movers do not attain their predicted first-mover advantage. In another parameterization we again find that the distribution of contributions is not as predicted when the first mover is predicted to free ride, but we find strong support for equilibrium predictions when the second mover is predicted to free ride. These results can be explained by second movers' willingness to punish first movers who free ride, and unwillingness to reward first movers who contribute.     

On the equivalence of preferences

Preference relations that agree on the ranking of elements of the space on which they are defined necessarily agree on all the conditional rankings of pairs of components of these elements. In this note we show the converse statement is also true.