Showing 1 - 10 of 1,396
In this paper we consider the classical newsvendor model with profit maximization. When demand is fully observed in each period and follows either the Rayleigh or the exponential distribution, appropriate estimators for the optimal order quantity and the maximum expected profit are established...
Persistent link: https://www.econbiz.de/10009647205
This paper proposes a straightforward Markov-switching asset allocation model, which reduces the market exposure to periods of high volatility. The main purpose of the study is to examine the performance of a regime-based asset allocation strategy under realistic assumptions, compared to a buy...
Persistent link: https://www.econbiz.de/10008592944
function. The second case has often called for estimation of an implicit aggregate production function. Most of the studies … relating to estimation of joint production functions have noted two difficulties: first that allocation of inputs to different … outputs are not known, and the second that a method of estimation (such as the Least Squares) cannot have more than one …
Persistent link: https://www.econbiz.de/10005789630
In this paper, we present a procedure for consistent estimation of the severity and frequency distributions based on …
Persistent link: https://www.econbiz.de/10005789976
This paper elaborates on the deleterious effects of outliers and corruption of dataset on estimation of linear … regression coefficients by the Ordinary Least Squares method. Motivated to ameliorate the estimation procedure, we have … introduced the robust regression estimators based on Campbell’s robust covariance estimation method. We have investigated into …
Persistent link: https://www.econbiz.de/10005790232
We address the problem of likelihood based inference for correlated diffusion processes using Markov chain Monte Carlo (MCMC) techniques. Such a task presents two interesting problems. First, the construction of the MCMC scheme should ensure that the correlation coefficients are updated subject...
Persistent link: https://www.econbiz.de/10005836360
The Two-Stage Least Squares (2-SLS) is a well known econometric technique used to estimate the parameters of a multi-equation (or simultaneous equations) econometric model when errors across the equations are not correlated and the equation(s) concerned is (are) over-identified or exactly...
Persistent link: https://www.econbiz.de/10005837152
We address the issue of estimation and inference in dependent nonstationary panels of small cross-section dimensions …. The main conclusion is that the best results are obtained applying bootstrap inference to single-equation estimators. SUR …
Persistent link: https://www.econbiz.de/10005837469
Factor models for portfolio credit risk assume that defaults are independent conditional on a small number of … constant default thresholds, as conditional defaults become independent only including a set of observable (time-lagged) risk … likelihood estimates for the sensitivity of default rates to systematic risk factors are obtained, showing how they may …
Persistent link: https://www.econbiz.de/10008543519
performing a bootstrap-based analysis of group efficiencies (weighted and non-weighted), estimating and comparing densities of …
Persistent link: https://www.econbiz.de/10008534292