Abstract. When a natural hazard event like an earthquake affects region and generates catastrophe (NatCat), the following questions arise: how often does such occur? What is its return period (RP)? We derive combined (CRP) from concept of extreme value statistics theory – pseudo-polar coordinates. A CRP (weighted) average local RP intensities. Since CRP's reciprocal expected exceedance frequenc...

Maize (Zea mays L.) production requires large amounts of nitrogen (N) thatdirectly affect production cost. Poultry litter can be used as an alternative source ofN. To optimize its use, poultry litter requires technical and economic feasibilityanalyses. Crop simulation models have proven to be efficient tools to support thistype of research. The objectives of this study were to determine yield a...

This study links the trend in two earnings quality metrics: 1) the standard deviation of residuals from the Dechow and Dichev (2002) model, and 2) squared residuals from the Jones (1991) model to firm age (defined using data about firm incorporation/founding dates). The results reveal the significant increasing trends in both measures during the 1962-2006 period are related to the dramatic decr...

We implemented a spatial model for analysing PM 10 maxima across the Mexico City metropolitan area during the period 1995-2016. We assumed that these maxima follow a non-identical generalized extreme value (GEV) distribution and modeled the trend by introducing multivariate smoothing spline functions into the probability GEV distribution. A flexible, three-stage hierarchical Bayesian approach w...

studying risk and frequency analysis of flood is done in order to design structures located in floody lands. in hydrological and water resources engineering projects, first of all, we should determine frequency of this phenomenon- their return period. in this research, the method of planning, the cumulative freguency curve is explained and probability and return period and errors concerning sma...

We develop an asset pricing model based on the interaction of heterogeneous trading groups. In addition to the two main trader groups, fundamentalists and trend-chasing chartists, we include a third significant group known as contrarian chartists. We model the case of opportunistic contrarian behavior, where the contrarian group disagrees with the trend-chasing chartists only when the return di...