BACKGROUND Recent cross-cultural comparisons between Asian and Western cultures have shown that ageism arises more from the lack of availability of social and economic resources for older adults than from the culture itself. We tested this assumption by conducting a survey among people living in a least developed country compared with those living in a developed country. PARTICIPANTS AND METH...

We study the cause of large fluctuations in prices on the London Stock Exchange. This is done at the microscopic level of individual events, where an event is the placement or cancellation of an order to buy or sell. We show that price fluctuations caused by individual market orders are essentially independent of the volume of orders. Instead, large price fluctuations are driven by liquidity fl...

We report results from a laboratory experiment that implements a consumption-based dynamic general equilibrium model of asset pricing. This work-horse model of the macrofinance literature posits that agents buy and sell assets for the purpose of intertemporally smoothing consumption, and that asset prices are determined by individual risk and time preferences as well as the distribution of inco...

We consider several conventional mesh smoothing approaches such as the Laplacian and bilaplacian smoothing methods, mean curvature flow (implicit implementation), and the Taubin j scheme and give a quantitative evaluation of them. To compare two close meshes having the same connectivity we consider vertex-based and normalbased L2 error metrics. We also give a visual comparison of the methods. W...

Social comparison theory maintains that people think about themselves compared with similar others. Those in one culture, then, compare themselves with different others and standards than do those in another culture, thus potentially confounding cross-cultural comparisons. A pilot study and Study 1 demonstrated the problematic nature of this reference-group effect: Whereas cultural experts agre...

Let a1, . . . , an, b1, . . . , bn be random variables in some (non-commutative) probability space, such that {a1, . . . , an} is free from {b1, . . . , bn}. We show how the joint distribution of the n-tuple (a1b1, . . . , anbn) can be described in terms of the joint distributions of (a1, . . . , an) and (b1, . . . , bn), by using the combinatorics of the n-dimensional R-transform. We point out...

A condition for when two eight-dimensional absolute valued algebras are isomorphic was given in [4]. We use this condition to deduce a description (in the sense of Dieterich, [9]) of the category of such algebras, and show how previous descriptions of some full subcategories fit in this description. Led by the structure of these examples, we aim at systematically constructing new subcategories ...

An organisation’s event logs can give great insight into factors that affect the execution of their business processes by comparing different process cohorts. We have recently presented ProcessProfiler3D, a novel tool for such comparisons that supports interactive data exploration, automatic calculation of performance data and visual comparison of multiple cohorts. The approach enables the intu...

This paper presents an approach for collaborative project management. The focus is on the support of collaboration, communication and trust. Several project management tools exist for monitoring and control the performance of project tasks. However, support of important intangible assets is more difficult to find. In the paper a leadership approach is identified as a management means and the us...

We extend a well known differential oligopoly game to encompass the possibility for production to generate a negative environmental externality, regulated through Pigouvian taxation and price caps. We show that, if the price cap is set so as to fix the tolerable maximum amount of emissions, the resulting equilibrium investment in green R&D is indeed concave in the structure of the industry. Our...