Narrow search
Showing 1 - 10 of 261
Cover Image
Reappraising medfly longevity : a quantile regression survival analysis
Koenker, Roger; Geling, Olga - 1999
-specific mortality in a population of roughly 1.2 million Mediterranean fruit flies (Ceratitis Capitata). The quantile regression … mortality rates at advanced ages, and the gender cross-over effect in survival functions for medflies. …
Persistent link: https://www.econbiz.de/10009580464
Cover Image
Canonical decomposition of linear transformations of two independent Brownian motions
Föllmer, Hans; Wu, Ching-Tang; Yor, Marc - 1998
filtering theory ; enlargement of filtration ; canonical decomposition ; Sturm-Liouville equation ; Volterra kernels …
Persistent link: https://www.econbiz.de/10009578007
Cover Image
Modeling the interdependence of volatility and inter-transaction duration processes
Grammig, Joachim; Wellner, Marc - 1999
In this paper we motivate, specify and estimate a model in which the intra-day volatilty process affects the inter-transaction duration process and vice versa. In order to solve the estimation problems implied by this interdependent formulation, we first propose a GMM estimation procedure for...
Persistent link: https://www.econbiz.de/10009579173
Cover Image
Fractional cointegration and tests of present value models
Caporale, Guglielmo Maria; Gil-Alaña, Luis A. - 2000
This paper tests the validity of Present Value (PV) models of stock prices by employing a two-step strategy for testing the null hypothesis of no cointegration against alternatives which are fractionally cointegrated. Monte Carlo simulations are conducted to evaluate the power and size...
Persistent link: https://www.econbiz.de/10009582383
Cover Image
Self-rated and changes in self-rated health as predictors of mortality : first evidence from german panel data
Schwarze, Johannes; Andersen, Hanfried H.; Anger, Silke - 2002
Background: Studies from several countries have shown that self-rated health is an independent predictor of mortality … individuals and (ii) changes in self-rated health, as predictors of mortality for Germany. Methods: A sub-sample of 3 … in self-rated health on predictions of mortality. Results: We find that, while currently self-rated health is shown to be …
Persistent link: https://www.econbiz.de/10009626677
Cover Image
Manipulation in political stock markets : preconditions and evidence
Hansen, Jan; Schmidt, Carsten; Strobel, Martin - 2001
, specific preconditions were drawn out under which manipulation in PSM can weaken this argument. Evidence for manipulation is … ; decisive vote illusion ; manipulation …
Persistent link: https://www.econbiz.de/10009614875
Cover Image
Weekday dependence of German stock market returns
Herwartz, Helmut - 1999
The so-called 'Monday effect ' has been found for various stock markets of the world. The empirical finding that Monday returns are significantly smaller than returns measured for the remaining days of the week calls the efficiency hypothesis for pricing processes operating on stock markets into...
Persistent link: https://www.econbiz.de/10009580468
Cover Image
The market reaction to stock splits : evidence from Germany
Wulff, Christian - 1999
Although stock splits seem to be a purely cosmetic event, there exists ample empirical evidence from the United States that stock splits are associated with abnormal returns on both the announcement and the execution day, and additionally with an increase in variance following the ex-day. This...
Persistent link: https://www.econbiz.de/10009580473
Cover Image
Quantifying the value of initial investment information
Amendinger, Jürgen; Becherer, Dirk; Schweizer, Martin - 2000
We consider an investor maximizing his expected utility from terminal wealth with portfolio decisions based on the available information flow. This investor faces the opportunity to acquire some additional initial information G.. The subjective fair value of this information for the investor is...
Persistent link: https://www.econbiz.de/10009583881
Cover Image
Quantile hedging
Föllmer, Hans; Leukert, Peter - 1998
In a complete financial market every contingent claim can be hedged perfectly. In an incomplete market it is possible to stay on the safe side by superhedging. But such strategies may require a large amount of initial capital. Here we study the question what an investor can do who is unwilling...
Persistent link: https://www.econbiz.de/10009574876