Ken Sennewald

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The present paper is concerned with the optimal control of stochastic differential equations, where uncertainty stems from one or more independent Poisson processes. Optimal behavior in such a setup (e.g., optimal consumption) is usually determined by employing the Hamilton-Jacobi-Bellman equation. This, however, requires strong assumptions on the model,(More)
A model highlighting the endogeneity of both volatility and growth is presented. Volatility and growth are therefore correlated but there is no causal link from volatility to growth. This joint endogeneity is illustrated by working out the effects through which economies with different tax levels differ both in their volatility and growth. Using a(More)
Measurement of relative renal function in azotemic patients can be misleading due to elevated background activity and delayed renal concentration of radiotracer. When there is delayed excretion of the tracer and obvious splenic or hepatic activity superimposed over one of the kidneys, it often is advantageous to delay the differential uptake measurement to(More)
Phlegmasia cerulea dolens (PCD) is characterized by the presence of massive venous occlusion of the veins in an extremity, leading to ischemia and sometimes gangrene. We report a case of phlegmasia cerulea dolens that was evaluated by radionuclide venography. We report both this case and information regarding phlegmasia and therapy of PCD to promote(More)
Cyclical components are analytically computed in a theoretical model of stochastic endogenous fluctuations and growth. Volatility is shown to depend on the speed of convergence of the cyclical component, the expected length of a cycle and on the altitude of the slump. Taxes affect these channels and can therefore explain cross-country differences and breaks(More)
Cyclical components are analytically computed in a theoretical model of stochas-tic endogenous fluctuations and growth. Volatility is shown to depend on the speed of convergence of the cyclical component, the expected length of a cycle and on the altitude of the slump. Taxes affect these channels and can therefore explain crosscountry differences and breaks(More)
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