The coronavirus pandemic has affected the Gulf countries in a particular way. In addition to the direct consequences of the pandemic, the spread of the coronavirus has led to a collapse in demand for the Gulf countries' most important source of revenue: oil. Its price, which had fallen initially...

Die Corona-Krise trifft die Golfstaaten auf besondere Weise. Neben den direkten Folgen hat die Pandemie die Nachfrage nach der wichtigsten Einnahmequelle einbrechen lassen, dem Erdöl. Der ohnehin durch den jüngsten Preiskrieg zwischen Saudi-Arabien und Russland gedrückte Ölpreis stürzte im...

In this article, a risk-adjusted return on capital (RAROC) valuation scheme for loans is derived. The critical assumption throughout the article is that no market information on a borrower's credit quality like bond or CDS (Credit Default Swap) spreads is available. Therefore, market-based...

The 2016 Paris Agreement (UNFCCC Authors, 2015) is the latest of initiative to create an international consensus on action to reduce GHG emissions. However, the challenge of meeting its targets lies mainly in the intimate relationship between GHG emissions and energy production, which in turn...

In some cost benefit analysis (CBA) applications, such as those used for the valuation of climate change damage, distributional weights are used to account for diminishing utility of marginal income. This is usually done by means of intra-temporal distributional weights, which are combined with...

One of the main drawbacks of the original CreditRisk+ methodology is that it models the default rates of the sectors (e.g. industry) as independently distributed random variables. Such an assumption has been considered as unrealistic and various approaches have been proposed in order to overcome...

Background: This paper develops a game theoretic model that analyses the dynamics of competition among the leading domestic aviation firms in the Nigerian aviation industry. It probes the abilities of the prisoner dilemma to describe the subjective behaviour of the firms, which provide a...

This paper reports on a systematic literature review of 14 empirical studies which address various aspects of platform economy with the application of the non-parametric DEA methodology. This review aimed to present the different aspects of efficiency evaluation of platform economy-based...

The need to align the strategies of the organization with the new information technologies had been imposed by the development of these last. One of the approaches that makes it possible such alienation is the Enterprise Architecture Approach (AE). To implement an AE project, it is necessary to...

The knapsack problem is one of the simplest and most fundamental NP-hard problems in combinatorial optimization. We consider two knapsack problems which contain additional constraints in the form of directed graphs whose vertex set corresponds to the item set. In the one-neighbor knapsack...