Efficiency and Political Economy of Pollution Control with Ancillary Benefits: An Application to NOx Control in the Chesapeake Bay Airshed

This paper examines implications for cost-effective allocation of pollution controls when preferences of coalitions organized along regional lines, or according to preferences for air vs. water quality improvements, are accounted for. Results are compared to a base case in which NOx emissions reductions must satisfy only a water quality standard, and total costs are minimized over emissions sources. Relative to base-case result that marginal control costs must be equal across sources, stronger relative preferences for air imply shifting of control toward sources that produce greater ancillary benefits to air quality. Regional differences may require side payments to induce cooperation where benefits are low, but this will not affect how controls themselves should be allocated.

The Vela Pulsar Wind Nebula at 6cm

Observations using the Australia Telescope Compact Array at a wavelength of 6 cm have uncovered the radio counterpart to the compact X-ray nebula surrounding the Vela pulsar. Two lobes were found oriented about the spin axis of the pulsar, starting at the edge of X-ray emission, they extend to three times the size. The northern lobe has a bright, defined edge and an integrated flux of 0.14 Jy, while the southern lobe of 0.12 Jy is more diffuse.Comment: 4 pages, 3 figures. To appear in "Neutron Stars in Supernova Remnants" (ASP Conference Proceedings), eds P. O. Slane and B. M. Gaensle

Exact C*-algebras and C0(X)-structure

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