For calculating non-life insurance premiums, actuaries traditionally rely on separate severity and frequency models using covariates to explain the claims loss exposure. In this paper, we focus on the claim severity. First, we build two reference models, a generalized linear model and a...

Output devices in print production can be characterized by different characterization methods. One commonly used method of color device characterization is least squares fitting. In essence, the least squares fitting is used to determine the coefficients of a predetermined polynomial, such that...

This study analyses the intra-EU trade of the world's chief wine exporters, namely Italy, France and Spain. Using an augmented version of the gravity model we empirically assess which of the three countries have experienced growth in intra-EU market trade. Effects of transportation costs, as...

In their recent paper, Wang and Leblanc (Ann Inst Stat Math 60:883–900, <CitationRef CitationID="CR17">2008</CitationRef>) have shown that the second-order least squares estimator (SLSE) is more efficient than the ordinary least squares estimator (OLSE) when the errors are independent and identically distributed with non zero third...</citationref>

Southern Africa rainfall station network is suffering from an unfortunate serious decline while climate-related food insecurity is worsening. In the current work, we demonstrate the possibility of exploiting the complementary roles that remote sensing, modeling, and geospatial data analysis can...

This article selects some major factors influencing the agricultural economic growth are selected, such as labor, capital input, farmland area, fertilizer input and information input. And it selects some factors to explain information input, such as the number of website ownership, types of...

We analyze the factors that affect security issuance and its impacts on the volatility of stock returns before and after the issuance under heterogeneous beliefs and short sale constraints using the issuing sample of convertible bonds, corporate bonds and stocks in China?s security market during...