In this study we investigate the function of risk management in financial institutions‟ investment decisions in asset-backed securities (ABS) prior to the 2008 financial crisis, and the interaction of this function with financial regulations. We employ U.S. insurance companies as a laboratory, which provides detailed security-level information on ABS investment. We find that strong risk managem...

The postglacial recolonization of northern North America was heavily influenced by the Pleistocene glaciation. In the Pacific Northwest, there are two disjunct regions of mesic temperate forest, one coastal and the other interior. The chestnut-backed chickadee is one of the species associated with this distinctive ecosystem. Using seven microsatellite markers we found evidence of population str...

by Jeffery W. Gunther and Anna Zhang The banking industry’s treatment of loans has undergone a dramatic transformation over the past two decades. While maintaining their traditional role in originating loans and holding them on their books, banks have become more likely to create and sell securities backed by pools of loans and other debt instruments. Banks’ adoption of the “originate-to-distri...

The survivorship method of analysis has been used to compare the failure rate and overall success of 1,430 cemented primary total knee arthroplasties performed at The Hospital for Special Surgery over a 15-year period. There were 224 total condylar prostheses with a polyethylene tibia, 289 of the posterior stabilised type with an all polyethylene tibia, and 917 posterior stabilised with a metal...

We consider a pricing model for mortgage backed securities formulated as a non-linear partial differential equation. We show that under certain feasible assumptions this model can be greatly simplified. We prove the well posedness of the simplified PDE.

A consecutive series of 235 total knee arthroplasties using the PFC system was followed prospectively for at least ten years in 186 patients. The operation was for osteoarthritis in 150 knees, for rheumatoid arthritis in 83, and for Paget's disease and femoral osteonecrosis in one knee each. At the latest review 56 patients had died, five were too ill to assess and three could not be traced. Th...

We evaluated 34 total hip arthroplasties (THA) for avascular necrosis of the femoral head in 26 patients who were younger than 40 years at the time of the index operation. The average age at the time of THA was 283 (17-38) years. The mean follow-up was 10.9 (5-19) years. We used 6 cemented and 28 cementless acetabular components and a cemented polished tapered stem in all hips. The mean Charnle...

While much attention has been paid to company founders, very little is known regarding the first set of non-founder employees who join high-growth startups ("early employees"). This paper explores the wage differential between venture capital-backed startups and established firms given that the two firm types compete for talent. Using data on graduating college students from MIT, I find that VC...

Chemical cues released from injured prey are thought to indicate the proximity of a predator or predation event, and therefore, an area of elevated predation risk. Prey often avoid chemical cues released from injured heterospeciŽcs, but there is little evidence to determine whether this is due to homologous cues among phylogeneticallyrelated species, or avoidance of injured syntopic species tha...

i document irruptive movements of the Chestnut-backed Chickadee to lucky Peak in southwestern idaho, over 80 km from its regular range. Chestnutbacked Chickadees were captured and/or observed at lucky Peak in 2000, 2004, and 2008. To evaluate the context for this phenomenon, i also examined data on capture of all chickadees and other irruptive species at lucky Peak and numbers of irruptive spec...