There is growing scientific evidence that improving the sustainability of consumer products can lead to significant gains in global sustainability. Historically, environmental policy has been managed by bureaucracies and institutions in a mechanistic manner; this had led to many early successes. However, we believe that if policy concerning product sustainability is also managed in this way, ne...

Strong structuration theory is a recent development in social theory that, among other attributes, makes the gap between ontological concepts and empirical research easier to negotiate. Giddens’ structuration theory is a developed ontology-in-general explaining at an abstract level how structure and agency are interrelated, being a duality in which neither can exist without the other. Strong st...

Westudy embeddings of graphs in surfaces up toZ2-homology. We introduce a notion of genus mod 2 and show that some basic results, mostnoteworthyblock additivity, hold forZ2-genus.Thishas consequences for (potential) Hanani-Tutte theorems on arbitrary surfaces.

Four decades ago in Silent Spring, Rachel Carson (1962) wove together a fabric of evidence suggesting that parts of the modern chemical revolution were having unintended consequences, undermining human and wildlife health in unexpected ways. At the time that fabric was more Chantilly lace than Afghan rug, with the scientific pattern defined as much by the holes as by the threads of connecting e...

We explore how integrating into the world economy affects the incomes of manufacturers in less developed countries (LDCs). We show that cutting back trade barriers has asymmetric effects on the incomes of the two typical groups of entrepreneurs. Whereas access to foreign markets benefits those entrepreneurs who are able to run large-scale factories, credit-rationed entrepreneurs running a micro...

This paper describes the results of a formative analysis of a redesigned Augmented Reality (AR) curriculum. The curriculum, Gray Anatomy, was designed based on lessons learned from the design and implementation process of a previous AR curriculum, Alien Contact! The positive and negative impacts of these modifications were evaluated through a qualitative analysis of gameplay and interview video...

Land use change, in the form of urbanization, is one of the most significant forms of global change, and most cities are experiencing a rapid increase in population and infrastructure growth. However, a subset of cities is experiencing a decline in population, which often manifests in the abandonment of residential structures. These vacant and abandoned structures pose a land use challenge to u...

The paper analyzes the effect of incentives regulation, when the yardstick competition approach is supplemented with a performance tax on providers. In an application to prospective payments in health care in the U.S. and Japan, we show differential effects of value-based purchasing, when price-setting is related to benchmark values of quality measures or length-of-stay. The predictions of our ...