We analyze the size dependence and temporal stability of firm bankruptcy risk in the US economy by applying Zipf scaling techniques. We focus on a single risk factor--the debt-to-asset ratio R--in order to study the stability of the Zipf distribution of R over time. We find that the Zipf exponent increases during market crashes, implying that firms go bankrupt with larger values of R. Based on ...

High fossil fuel prices have rekindled interest in nuclear power. This paper identifies specific nuclear characteristics making it unattractive to merchant generators in liberalized electricity markets, and argues that non-fossil fuel technologies have an overlooked ‘option value’ given fuel and carbon price uncertainty. Stochastic optimization estimates the company option value of keeping open...

eCommerce is a faceless business arrangement where the process of creating trust towards merchants, hereby referred to as “merchant trust”, is still a big challenge. Merchant trust framework can be created by using several factors such as existence (people, physical, and registration), affiliation (third party endorsement, membership, and portal), performance (delivery, payment and community co...

interest free banking law at 1363 was implemented in the banking system in iran. one of the main goals of this law was eliminating usury from monetary system, and utilization from non-usury credit impact on economic growth through preferring money contribution in the capital. this paper uses data from years 1363 to 1386 and implementing herfindahl-hirschman index, evaluated and ranked concentra...

BACKGROUND The British merchant fleet has expanded in recent years but it is not known whether this expansion has led to proportionate changes in mortality. AIMS To investigate mortality from accidents and injuries in British merchant shipping, to determine whether this has increased in recent years, to compare fatal accident rates across British industries and to review fatal accident rates ...

Even the most superficial glance at the vast majority of crossing-minimal geometric drawings of Kn reveals two hard-to-miss features. First, all such drawings appear to be 3-fold symmetric (or simply 3-symmetric) . And second, they all are 3-decomposable, that is, there is a triangle T enclosing the drawing, and a balanced partition A,B,C of the underlying set of points P , such that the orthog...