The magnetohydrodynamic ~MHD! stability of negative central magnetic shear toroidal equilibria with q.2 everywhere and ebpol@1 is investigated. Here, q is the safety factor of the equilibrium magnetic field in a torus with inverse aspect ratio e , and bpol is the ratio of the plasma pressure to the pressure in the poloidal magnetic field. At small ebpol!1, the elimination of the q52 resonant su...

The filter paper disc method for cloning inducible lymphocytes was used to census the splenic B cell population of C57BL/6 and BALB/c mice for the expression of three VH gene-families, VH X-24, -Q52, and -J558. B cell colonies, arising from single founder lymphocytes, were identified by in situ hybridization with VH family- and C mu-specific cDNA probes. Some 6.7 X 10(4) C mu+ colonies were scr...

This paper examines whether an intra-household externality prevents adoption of a technology with substantial implications for population health and the environment: improved cookstoves. Motivated by a model of intra-household decision-making, the experiment markets stoves to husbands or wives in turn at randomly varying prices. We find that women – who bear disproportionate cooking costs – hav...

Taking advantage of the structure of the 1990 Clean Air Act Amendments (CAAA), we study the tradeoff between efficiency and equity associated with different levels of discretionary power when delegating regulatory authority to lower levels of government. Exploiting an instrumental variables approach, we provide evidence that the benefits of the 1990 CAAA were highly localized and accrued dispro...

We investigate the long-run impact of environmental regulations on the intraindustry distribution of firm-level productivity and the resulting aggregate variables. In a general-equilibrium model that accounts for endogenous entry/exit of heterogeneous firms, neither the average productivity of firms nor the mass of firms is independent of the choice of policy instruments (i.e. emissions tax vs....

Measurements of the electron temperature, Te , and density, ne , during the energy quench of a major disruption showed that the onset of Te erosion in the neighborhood of the m/n52/1 O point at the low field side ~LFS! accelerates the well-known m/n51/1 erosion of the core temperature. During this phase Te(r) is only partially flat in the region between the q52 and the q51 surfaces and ne(r) de...

We investigate the effects of consumers’ environmental concerns and market competition on firms’ decisions to innovate in “clean” technologies. Agents care about their consumption footprint; firms pursue greener products soften price competition. Acting as complements, these forces determine R&D, pollution, welfare. test theory using panel data patents by 7,060 automobile sector 25 countrie...

The impact of environmental stringency on capital flows remains a hotly contested issue. Moreover, existing parametric estimates using counts of new foreign-owned manufacturing plant births provide counter-intuitive results: pollution abatement costs are only found to have an impact in non-pollution-intensive sectors. Applying recently developed nonparametric count data methods, we re-visit thi...

Integrated assessment models lack a microeconomic foundation in modelling environmental damages to the economy. To overcome this, damage coefficients are incorporated in standard microeconomic models. Firms and consumers take both damages and prices as given. Demand, supply, profit and expenditure functions under damage coefficients are derived that allow easy implementation in applied economic...