It is shown that a semidirect sum of a semisimple Lie algebra and a solvable Lie algebra with respect to a representation of which do not decompose into a direct sum of ideals cannot have a radical associated to a filiform Lie algebra. This proves that this class of nilpotent Lie algebras has...

In this paper we propose a new risk decomposition technique. Taking an example of a portfolio of assets that can be decomposed into sub portfolios and also represented using a factor model, investment professionals have access to tools that can represent risk from three different perspectives...

This paper aims to bring out the determinants of significant poverty alleviation observed in Cameroon between 1993 and 2001. It focuses on the decomposition of poverty and growth changes, in order to assess the intrinsic contribution of each major economic policy implemented in Cameroon during...

A number of studies, mostly on the US economy, have shown that real GDP growth could be underestimated due to the imperfect accounting of quality changes of goods and services. Moreover, GDP growth as the indicator reflecting the aggregate growth of the output of the economy does not enable one...

The hyperbolic singular value decomposition (HSVD) of the pair (), where has full column rank and is diagonal matrix of signs, is defined as = Σ, where is orthogonal, Σ is positive definite diagonal, and is -orthogonal matrix, = . We analyze when it is possible to compute the HSVD with high...

One of the key challenges implied by the upcoming regulatory framework for market risk, known as FRTB, is the PL attribution (PLA) tests. PLA tests constitute a major innovation in the way risk engine and models are assessed for effectiveness and accuracy (on both pricing and risk factors...

I analyze the impact of an increase in SNAP benefits (the supplemental nutrition assistance program, formerly called food stamps) on shopping behavior, consumption choice, and prices. Using consumer scanner data, I show that the increase in benefits due to ARRA (American Recovery and...

Inequalities in the opportunity to obtain a good education in low-income countries are widely understood to be related to household resources and schooling quality. Yet, to date, most researchers have investigated the contributions of these two factors separately. This paper considers them...

This paper analyzes the patterns of CO2 emissions for a sample of 144 countries in 1992–2013. The environmental Kuznets curve (EKC) hypothesis was tested with the help of econometric analysis for both production- and consumption-based emissions. The relationship between incomes and emissions...