Harsanyi’s utilitarianism is extended here to Savage’s framework. We formulate a Pareto condition that implies that both society’s utility function and its probability measure are linear combinations of those of the individuals. An indiscriminate Pareto condition has been shown to contradict linear aggregation of beliefs and tastes. We argue that such a condition is not compelling: Society shou...

A central authority possessing tax and expenditure responsibilities can readily provide an efficient level of a public good. Absent a central authority, voluntary arrangements must replace coercive ones, and significant under-provision must be expected. International public goods are particularly challenging due to the substantial asymmetries among nations. Small-interest nations have strong in...

Consider a requester who wishes to crowdsource a series of identical binary labeling tasks from a pool of workers so as to achieve an assured accuracy for each task, in a cost optimal way. The workers are heterogeneous with unknown but fixed qualities and moreover their costs are private. The problem is to select an optimal subset of the workers to work on each task so that the outcome obtained...

With deeper levels of external process integration and a growing number of electronic business relationships, enterprises are striving to become more interoperable with their business partners. While two-way integration linkages have mostly been realized as point-to-point connections with a handful of business partners, new integration technologies such as Web services and XML give enterprises ...

There are several publications dedicated to the description and analysis of change detection between two gray-value images. This paper now introduces new methods to detect moving objects between multiple images and to detect changes between color images or any type of multispectral images. We are not aware of methods giving the possibility to detect color changes and changes between multiple fr...

The more the various dimensions of climate change are just, the more an international agreement is in principle attainable. That is the reason why justice plays a major role in favouring collective action against global warming. In this article I spell out the dominant notions of justice and the consequent criteria of equity for the main domains of global warming negotiations, in order to ident...

An accurate assessment of the role of solar variability is a key step toward a proper quantification of natural and anthropogenic climate change. To this end, climate models have been extensively used to quantify the solar contribution to climate variability. However, owing to the large computational cost, the bulk of modeling studies to date have been performed without interactive stratospheri...

An accurate assessment of the role of solar variability is a key step towards a proper quantification of natural and anthropogenic climate change. To this end, climate models have been extensively used to quantify the solar contribution to climate variability. However, owing to its large computational cost, the bulk of modeling studies to date have been performed without interactive stratospher...

Should long-term assets such as infrastructure, education, and the environment earn the same return as productive capital? If yes, we can say that investments in such assets pass the cost-benefit test. But time-inconsistent decision-makers prefer to violate the test: long-term assets provide commitment to current preferences, leading to investment biases. We formulate the cost-benefit requireme...