Debris flow is an important sedimenttransport mechanism in subaerial and subaqueous environments. Its properties change almost continuously as sediment and water are added to or subtracted from it (Smith and Lowe, 1991; Vallance, 2000). In subaerial environments, debris flows are commonly diluted into hyperconcentrated flows when they encounter a streamflow (Pierson and Costa, 1987; Costa, 1988...

This report surveys important results in the literature on the problem of hedging contingent claims in incomplete markets. Consider a probability space (Ω,F , P ) and let X be a stochastic process describing the fluctuation of the stock price. Given a contingent claim H, the problem is to find an “optimal” admissible trading strategy, which is a dynamic porfolio of stock and bond (with fixed pr...

The Micro-ID 4-h identification system for Enterobacteriaceae was compared to the API 20E overnight method, using 230 fresh clinical isolates and 74 stock cultures. Agreement was 97.8% for the clinical isolates and 93.2% for the stock cultures. Eighty-seven percent of primary culture plates containing gram-negative rods yielded sufficient growth to perform the 4-h Micro-ID identification on the...

Cleveland Clinic, Department of Cardiovascular Medicine, Cleveland, OH, Ohio State University, Division of ardiovascular Medicine, Columbus, OH, Broward General Medical Center, Fort Lauderdale, FL, University Hospital, ivision of Cardiovascular Medicine, Pisa, Italy, University of Miami, Cardiothoracic Surgery, Miami, FL, St. Thomas esearch Institute, University of Tennessee College of Medicine...

Suppose we wish to estimate some quantity, θ = E[h(X)], where X = {X 1 ,. .. , X n } is a random vector in R n , h(·) is a function from R n to R, and E[|h(X)|] < ∞. Note that X could represent the values of a stochastic process at different points in time. For example, X i might be the price of a particular stock at time i and h(·) might be given by h(X) = X 1 +. .. + X n n so then θ is the ex...

a r t i c l e i n f o In this paper, I investigate the determinants of price differences in the shares of cross-listed firms in domestic and foreign markets. Diverging from the literature in this field, I introduce a methodology that is independent of any specific form of utility function. My theoretical analysis indicates that investment opportunities and consumption growth cause price dispari...

where h is the stock of habits, c is the instantaneous flow of consumption, ρ is the coefficient of relative risk aversion, and γ indexes the importance of habits. If γ = 0 then only the absolute level of consumption is important (the standard CRRA model), while if γ = 1, then consumption relative to the habit stock is all that matters. For values of γ between zero and one, both the absolute an...

We consider the roughness properties of NYSE (New York Stock Exchange) stock-price fluctuations. The statistical properties of the data are relatively homogeneous within the same day but the large jumps between different days prevent the extension of the analysis to large times. This leads to intrinsic finite size effects which alter the apparent Hurst (H) exponent. We show, by analytical metho...

where h is the stock of habits, c is the instantaneous flow of consumption, ρ is the coefficient of relative risk aversion, and γ indexes the importance of habits. If γ = 0 then only the absolute level of consumption is important (the standard CRRA model), while if γ = 1, then consumption relative to the habit stock is all that matters. For values of γ between zero and one, both the absolute an...