Michael S. Long

Learn More
We model CEO and director compensation using firm characteristics, CEO characteristics, and governance variables. After controlling for monitoring proxies, we find a significant positive relationship between CEO and director compensation. We hypothesize that this relationship could be due to unobserved firm complexity (omitted variables), and/or to excess(More)
[1] Breaking waves on the ocean surface produce bubbles that, upon bursting, inject seawater constituents into the atmosphere. Nascent aerosols were generated by bubbling zero-air through flowing seawater within an RH-controlled chamber deployed at Bermuda and analyzed for major chemical and physical characteristics. The composition of feed seawater was(More)
Soil-surface CO2 efflux (FS; ‘soil respiration’) accounts for 50% of the CO2 released annually by the terrestrial biosphere to the atmosphere, and the magnitude and variability of this flux are likely to be sensitive to climate change. We measured FS in nine permanent plots along a 5.2 C mean annual temperature (MAT) gradient (13e18.2 C) in Hawaiian(More)
We examine the relation between pay-performance sensitivity and future stock returns for a large sample of firms between 1992 and 2004. On average, high pay-performance sensitivity is associated with low future returns. Part of this negative relation may be due to a reduction in equity risk induced by riskaverse managers responding to increases in the(More)
The GEOS-Chem global chemical transport model (CTM), used by a large atmospheric chemistry research community, has been re-engineered to also serve as an atmospheric chemistry module for Earth system models (ESMs). This was done using an Earth System Modeling Framework (ESMF) interface that operates independently of the GEOSChem scientific code, permitting(More)
Rivers discharge 28 ± 13Mmol yr 1 of mercury (Hg) to oceanmargins, an amount comparable to atmospheric deposition to the global oceans. Most of the Hg discharged by rivers is sequestered by burial of benthic sediment in estuaries or the coastal zone, but some is evaded to the atmosphere and some is exported to the open ocean. We investigate the fate of(More)
We describe the Harvard–NASA Emission Component version 1.0 (HEMCO), a stand-alone software component for computing emissions in global atmospheric models. HEMCO determines emissions from different sources, regions, and species on a user-defined grid and can combine, overlay, and update a set of data inventories and scale factors, as specified by the user(More)
Repository Citation Meskhidze, Nicholas; Petters, Markus D.; Tsigaridis, Kostas; Bates, Tim; O'Dowd, Colin; Reid, Jeff; Lewis, Ernie R.; Gantt, Brett; Anguelova, Magdalena D.; Bhave, Prakash V.; and Wozniak, Andrew, "Production Mechanisms, Number Concentration, Size Distribution, Chemical Composition, and Optical Properties of Sea Spray Aerosols" (2013).(More)