Historical and interpretative aspects of quantum mechanics: a physicists' naive approach

Many theoretical predictions derived from quantum mechanics have been confirmed experimentally during the last 80 years. However, interpretative aspects have long been subject to debate. Among them, the question of the existence of hidden variables is still open. We review these questions, paying special attention to historical aspects, and argue that one may definitively exclude local realism on the basis of present experimental outcomes. Other interpretations of Quantum Mechanics are nevertheless not excluded.Comment: 30 page

Improved Compressive Sensing Of Natural Scenes Using Localized Random Sampling

Compressive sensing (CS) theory demonstrates that by using uniformly-random sampling, rather than uniformly-spaced sampling, higher quality image reconstructions are often achievable. Considering that the structure of sampling protocols has such a profound impact on the quality of image reconstructions, we formulate a new sampling scheme motivated by physiological receptive field structure, localized random sampling, which yields significantly improved CS image reconstructions. For each set of localized image measurements, our sampling method first randomly selects an image pixel and then measures its nearby pixels with probability depending on their distance from the initially selected pixel. We compare the uniformly-random and localized random sampling methods over a large space of sampling parameters, and show that, for the optimal parameter choices, higher quality image reconstructions can be consistently obtained by using localized random sampling. In addition, we argue that the localized random CS optimal parameter choice is stable with respect to diverse natural images, and scales with the number of samples used for reconstruction. We expect that the localized random sampling protocol helps to explain the evolutionarily advantageous nature of receptive field structure in visual systems and suggests several future research areas in CS theory and its application to brain imaging

Environmental public good provision under robust decision making

We study public good provision in a two-country dynamic setup with environmental externalities. In this framework, we examine robust decision making under potential misspecification of the process that describes the evolution of the environmental public good. Robust policies, arising from fear of model misspecification, help to correct for the inefficiencies associated with free riding and thus increase the provision of the public good. As a result, there can be welfare gains from robust policies even when the fear of model misspecification proves to be unfounded

Property\u27s Morale

A foundational argument long invoked to justify stable property rights is that property law must protect settled expectations. Respect for expectations unites otherwise disparate strands of property theory focused on ex ante incentives, individual identity, and community. It also privileges resistance to legal transitions that transgress reliance interests. When changes in law unsettle expectations, such changes are thought to generate disincentives that Frank Michelman famously labeled demoralization costs. Although rarely approached in these terms, arguments for legal certainty reflect underlying psychological assumptions about how people contemplate property rights when choosing whether and how to work, invest, create, bolster identity, join a community, and make other decisions at property’s core. More precisely, demoralization is predicated on a kind of paralysis flowing from anxieties about instability, unfair singling out, and majoritarian expropriation that can be sparked in legal transitions. This prevailing psychological portrait of expectations has considerable intuitive appeal and is widely influential. It is, however, distinctly incomplete. This Article offers an alternative picture of the expectations with which people approach property and the corresponding anxieties that might cause people to hesitate. From this perspective, stability is less important than assurances that the legal system will respond when external forces threaten to overwhelm the value owners create, that it will provide a fair process of adjustment over time, and that it will ensure inclusion. In short, property law can offer morale benefits that are every bit as critical as demoralization costs. Property theory and doctrine often juxtapose ex ante certainty against ex post flexibility; however, a morale lens underscores that legal transitions can signal responsiveness as easily as instability. Doctrinally, this understanding recalibrates property law’s approach to expectation. Normatively, property’s largely ignored, but absolutely vital, morale function provides a framework for understanding how the legal system can buoy confidence in greater balance, fostering all of the work with which property is so rightly associated

Discounting and Welfare Analysis Over Time: Choosing the ç

Based on the Ramsey equation and an ethically motivated rejection of pure utility time discount, the Stern Review on the Economics of Climate Change concentrates on the use of the elasticity of marginal utility ç in the intergenerational social welfare function. We support this position by showing that, also from the view point of sustainability, application of ç is preferable to the use of the pure time discount parameter ñ when a balanced distribution of utility across generations is to be brought about. After reviewing empirical studies on the size of ç we develop a novel axiomatic approach based on non–envy criteria by which we obtain values for ç lying in a range between 1 and 2. Whereas the starting point of the Stern Review quite explicitly is an ethical one, many critics of the Review deny this ethical stance and thus – as described in our paper – miss a crucial element of the Stern Review.Ramsey equation, discounting, sustainability, non-envy

Burden of Proof in Environmental Disputes in the WTO: Legal Aspects

This paper discusses allocation of burden of proof in environmental disputes in the WTO system. Besides laying down the natural principles that (i) the complainant carries the burden to (ii) make a prima facie case that its claim holds, WTO adjudicating bodies have said little of more general nature. The paper therefore examines the case law of relevance to environmental policies, to establish the rules concerning burden of proof that are likely to be applied in such disputes. Evaluating this case law, the paper makes two observations,: First, in cases submitted under the GATTWTO, adjudicating bodies have committed errors regarding the required amount of evidence (the burden of persuasion); and second, such errors, as well as errors concerning the determination of the party to carry the burden of providing this evidence (the burden of production), have been committed in disputes submitted under the TBT/SPS Agreements. These errors largely seem attributable to the general absence of methodology regarding the interpretation of some key substantive provisions featuring in the three Agreements.Burden of Proof; Burden of Production; Burden of Persuasion; WTO; Environment

Integrated Baseline Review (IBR) Handbook

The purpose of this handbook is intended to be a how-to guide to prepare for, conduct, and close-out an Integrated Baseline Review (IBR). It discusses the steps that should be considered, describes roles and responsibilities, tips for tailoring the IBR based on risk, cost, and need for management insight, and provides lessons learned from past IBRs. Appendices contain example documentation typically used in connection with an IBR. Note that these appendices are examples only, and should be tailored to meet the needs of individual projects and contracts. Following the guidance in this handbook will help customers and suppliers preparing for an IBR understand the expectations of the IBR, and ensure that the IBR meets the requirements for both in-house and contract efforts