In these notes we compute the geodesic curvature on a surface in isothermal coordinates and use it to prove the local Gauß-Bonnet Theorem. These remarks are a continuation of my notes [T] whose notation we continue to employ. 1. Isothermal Coordinates of a Surface. The computations are facilitated by using a special coordinate system in which the metric and the resulting formulas take a particu...

We propose a tractable model of asset management in which benchmarking arises endogenously, and analyze its welfare consequences. Fund managers' portfolios are not contractible they incur private costs running them. Incentive contracts for fund managers create pecuniary externality through their effect on prices. Benchmarking inflates prices creates crowded trades. The crowding reduces the effe...

We use unique institutional securities holdings data to examine the trading behaviour of delegated capital and its impact on bond risk premia. show that fund managers trade strongly procyclically: they actively move into higher yielding, longer duration lower rated as yields fall spreads compress, vice versa. Funds more exposed negative increase their risk-taking strongly, this effect is partic...

An analysis of adaptive optics K-band imaging data of GQ Lup acquired in 1994 by the first generation adaptive optics system ComeOn+ at the ESO 3.6m optical telescope in La Silla is presented. The data reveal a likely candidate for the low-mass companion recently reported in the literature. An a posteriori detection in the 11 year old data would provide a useful astrometric data point for the v...

The analyses of X-ray emission from classical novae during the outburst stage have shown that the soft X-ray emission below 1 keV, which is thought to originate from the photosphere of the white dwarf, is inconsistent with the simple blackbody model of emission. Thus, ROSAT Position Sensitive Proportional Counter (PSPC) archival data of the classical novae GQ Mus 1983 (GQ Mus) have been reanaly...

Earnings are riskier and more unequal for households born in the 1960s 1980s than those 1940s. Despite improvements financial conditions, younger generations less likely to be living their own homes older at same age. By using a life-cycle model with housing portfolio choice that includes flexible earnings risk aggregate asset price risk, I show changes dynamics account large part of reduction ...

Examination of 13 members of a Filipino family revealed that 6 had erythrocytosis inherited as a simple autosomal dominant trait. Application of several electrophoretic and chromatographic tests failed to reveal the presence of an abnormal hemoglobin in hemolysates from affected individuals. However, measurements of oxygen dissociation curves using whole bloods, dialyzed hemolysates, and 2,3-di...