Tail asymptotics of randomly weighted large risks

In this paper we are concerned with a sample of asymptotically independent risks. Tail asymptotic probabilities for linear combinations of randomly weighted order statistics are approximated under various assumptions, where the individual tail behaviour has a crucial role. An application is provided for Log-Normal risks

Alison Spedding. Religión en los Andes. Extirpación de idolatrías y modernidad de la fe andina

Book Review / Reseña</jats:p

Matrices, Moments and Quadrature: Applications to Time- Dependent Partial Differential Equations

The numerical solution of a time-dependent PDE generally involves the solution of a stiff system of ODEs arising from spatial discretization of the PDE. There are many methods in the literature for solving such systems, such as exponential propagation iterative (EPI) methods, that rely on Krylov projection to compute matrix function-vector products. Unfortunately, as spatial resolution increases, these products require an increasing number of Krylov projection steps, thus drastically increasing computational expense

The Behaviors of Lending, Deposit Rates and Intermediation Premium of Pakistani Banks with Different Types of Ownership Structures

This study applies Enders and Siklos’ (2001) procedure to test for the long-run asymmetric co-integrating relationship and short-run dynamic Granger causality between Pakistani lending and deposit rates set by public, private, foreign, specialized, and all banks combined over the period January 2004 to December 2013. Terrorist activities on the money market plays negative role. The empirical results suggest a long-run asymmetric co-integration relationship between the rates. The Granger causality tests suggest bidirectional and asymmetric causality between lending and deposit rates set by Pakistani public and private banks, while the lending rates set by the country’s foreign, specialized and all banks combined are exogenous from their deposit rates.  The unusually fast and overshot adjustments of the lending rates in response to increases in the intermediation premium of public banks are interpreted as graft maximization.  The asymmetric and different nature of the Granger causalities exhibited by banks with different ownership structures should be of special interest for the Central Bank in formulating and implementing its countercyclical monetary policy and for corporations in determining their capital structures