Credit portfolio selection with decaying contagion intensities

We develop a fixed‐income portfolio framework capturing the exponential decay of contagious intensities between successive default events. We show that the value function of the control problem is the classical solution to a recursive system of second‐order uniformly parabolic Hamilton–Jacobi–Bellman partial differential equations. We analyze the interplay between risk premia, decay of default intensities, and their volatilities. Our comparative statics analysis finds that the investor chooses to go long only if he is capturing enough risk premia. If the default intensities deteriorate faster, the investor increases the size of his position if he goes short, or reduces the size of his position if he goes long.     

Arbitrage‐free XVA

We develop a framework for computing the total valuation adjustment (XVA) of a European claim accounting for funding costs, counterparty credit risk, and collateralization. Based on no‐arbitrage arguments, we derive backward stochastic differential equations associated with the replicating portfolios of long and short positions in the claim. This leads to the definition of buyer's and seller's XVA, which in turn identify a no‐arbitrage interval. In the case that borrowing and lending rates coincide, we provide a fully explicit expression for the unique XVA, expressed as a percentage of the price of the traded claim, and for the corresponding replication strategies. In the general case of asymmetric funding, repo, and collateral rates, we study the semilinear partial differential equations characterizing buyer's and seller's XVA and show the existence of a unique classical solution to it. To illustrate our results, we conduct a numerical study demonstrating how funding costs, repo rates, and counterparty risk contribute to determine the total valuation adjustment.     

Performance measurement systems in public service networks. The what,who, and how of control

This study explores the concept of a network Performance Measurement System (PMS) and how it helps in terms of what is being controlled in the network, which exerts control and how this control is achieved. In analyzing PMSs, the distinction was made between their hierarchical and their socializing components. An exploratory case study was carried out on a public service network in charge of a local public transport. Findings from the case study are used to reach a preliminary conceptualization whereby network PMSs are systems consisting of three main building blocks activated on demand by three main network actors and where there is coexistence and blending between hierarchical and socializing practices.     

Corporate communication management: A framework based on decision-making with reference to communication resources

This paper proposes a conceptual framework for corporate communication management, based on the creation and utilisation of communication resources. The aim is to address a gap in the literature in that to date, communication tools have been identified as communication resources in very few studies, nor have communication decisions been linked to the creation and use of such resources. The paper draws on some basic resource-based view assumptions to identify firm-specific communication resources. The study also draws on Parsons' sociological approach with reference to the classification of organisational decisions (policy, allocation and coordination) and contextualises this approach to the decision-making within corporate communication function/department. The framework also takes into account some elements of the postmodernism. According to this tendency in contemporary culture, internal and external stakeholders play a proactive role in the creation and utilisation of communication resources. The study contributes to the development of corporate communication as an autonomous area of management.     

Understanding and forecasting aggregate and disaggregate price dynamics

There are doubts regarding the empirical benefits of forecast aggregation. Theoretical research clearly supports forecast aggregation but conflicting results exist in the empirical literature. We search the literature for empirical regularities. One important issue often cited is estimation error and papers which are unsupportive of forecast aggregation often have short spans of data. A second empirical regularity is that researchers frequently use a relatively small number of disaggregates. Our work finds that the greatest benefits to aggregation are realised when a large number of disaggregates are used. This is a natural consequence of the theoretical results. A second critical issue in forecast aggregation is model selection. We suggest a simple guide to model choice based on the empirical properties of the data. In this regard, the extent of comovements between the constituent series determines model choice.     

Bilateral credit valuation adjustment for large credit derivatives portfolios

We obtain an explicit formula for the bilateral counterparty valuation adjustment of a credit default swaps portfolio referencing an asymptotically large number of entities. We perform the analysis under a doubly stochastic intensity framework, allowing default correlation through a common jump process. The key insight behind our approach is an explicit characterization of the portfolio exposure as the weak limit of measure-valued processes associated with survival indicators of portfolio names. We validate our theoretical predictions by means of a numerical analysis, showing that counterparty adjustments are highly sensitive to portfolio credit risk volatility as well as to the intensity of the common jump process.     

City–Charity Partnerships and the Financial Crisis: Case study evidence

Abstract

This paper examines the experience of UK charities in the aftermath of the global financial crisis. The focus of this paper is on charities in the specific study setting of the city. The city is an important location in contemporary society. Resource dependency theory is used to analyse the attenuated position of charities in one city. This study reveals the fragility of city–charity partnerships because of the impact of the global financial crisis on public finances.     

Analysis of the Interaction between Regional R&D Productivity and the Investment Strategies of Multinational Enterprises

The aim of this article is to analyze the interaction between regional R&D productivity and the investment strategies of multinational enterprises. The discussion is based on the hypothesis that R&D investments cause a reduction in the production costs and an increase in firms’ market share; furthermore, R&D costs may be affected by national industrial policies. Supposing the existence of asymmetries in local research productivity, necessary and sufficient conditions for a geographical diversification of resources have been found. Suggestions with respect to the optimal allocation of R&D investment are finally derived.