Stochastic duration and fast coupon bond option pricing in multi-factor models

Generalizing Cox, Ingersoll, and Ross (1979), this paper defines the stochastic duration of a bond in a general multi-factor diffusion model as the time to maturity of the zero-coupon bond with the same relative volatility as the bond. Important general properties of the stochastic duration measure are derived analytically, and the stochastic duration is studied in detail in various well-known models. It is also demonstrated by analytical arguments and numerical examples that the price of a European option on a coupon bond (and, hence, of a European swaption) can be approximated very accurately by a multiple of the price of a European option on a zero-coupon bond with a time to maturity equal to the stochastic duration of the coupon bond. This revised version was published online in June 2006 with corrections to the Cover Date.     

Enabling supply chain analytics for enterprise information systems: a topic modelling literature review and future research agenda

ABSTRACT

This paper provides a literature review of the research within the framework of 1) analytics,2) supply chain management, and 3) enterprise information systems, and relate the findings to competitive enablers. The findings are used to construct a future research agenda. The methodology is a systematic two-stage approach, based on a Smart Literature review framework using topic modelling. The research agenda proposes future research within the themes of 1) context, 2) cross-functional analytics, 3) cross-planning level analytics, 4) implementation and assimilation of analytics in EIS, 5) analytics and big data for SCM, 6) managerial aspects of analytics, and 7) data and system heterogeneity.     

Blockchain and business ethics

This paper provides, from a business ethics perspective, a basic clustering of the morally (a) favorable, (b) unfavorable, and (c) ambivalent dimensions of blockchain technology and its various emergent applications. Instead of proffering specific assessments on particular aspects of blockchain‐based business models, we aim to offer an initial overview that charters the territory so that future research can bring about such moral assessments in an informed and orderly fashion. The main contribution of this paper lies in identifying several morally ambivalent dimensions of blockchain technology, which we finally link to two strands of business ethics research: ethical and legal aspects of legislation as well as a link to Habermasian corporate social responsibility theory arguing for transparent data production and consumption on the blockchain. We conclude that future research is necessary for moral assessment of the ambivalent cases, since their ethical evaluation changes depending on whether one analyzes them through the lenses of utilitarianism, contractarianism, deontology, and virtue ethics, respectively.     

Liberalisation and international cooperation

While being a necessary consequence of the ongoing and desirable process of international division of labour, the increasing freedom of international money and capital movements has in recent years impaired the efficiency of national economic policy instruments. In order to overcome this drawback the loss in national economic policy autonomy should be counterbalanced by a gain in economic policy cooperation between the national economies.     

Will the Real A. Smith Please Stand Up!

In both the public and the business world, in academe as well as in practice, the ideas of Adam Smith are regarded as the bedrock of modern economics. When present economic conditions and management practices are criticised, Adam Smith is referred to by defenders and detractors of the current status quo alike. Smith, it is believed, defined the essential terms of reference of these debates, such as the rational pursuit of self-interest on part of the individual and the resultant optimal allocation of goods in free markets thanks to the workings of an “invisible hand.” In this article, we question whether this standard view of Smith, the economist, is tenable. We provide an extensive review of the extant secondary literature from economists, business ethicists, and philosophers, comparing their assessments to crucial elements of Smith’s theoretical system. As a result, we show that Smith, far from being an advocate of a value-free or even value-averse conception of economic transactions, stood for a virtue-based and values-oriented model of business. Accordingly, we argue current management education and the pedagogy of business ethics ought to be changed, and certain strategic conclusions drawn for business practice.     

Equilibrium in securities markets with heterogeneous investors and unspanned income risk

In a finite time horizon, incomplete market, continuous-time setting with dividends and investor incomes governed by arithmetic Brownian motions, we derive closed-form solutions for the equilibrium risk-free rate and stock price for an economy with finitely many heterogeneous CARA investors and unspanned income risk. In equilibrium, the Sharpe ratio is the same as in an otherwise identical complete market economy, whereas the risk-free rate is lower and, consequently, the stock price is higher. The reduction in the risk-free rate is highest when the more risk-averse investors face the largest unspanned income risk.     

Children's influences on in-store purchases

Relatively little is known about the influence children have on their parents’ purchases in a retail setting. This study investigates which factors affect children's purchase requests and their parents’ subsequent purchases. It was found that factors influencing the number of children's purchase requests were the freedom of a child's movements, the product's visibility, and the child's developmental stage. The latter variable together with the suitability of the good for consumption on the premises, the linguistic form of child's request, the parent's household income, and the price of the good determine the number of purchases following a child's request.     

Union density and determinants of union membership in 18 EU countries: evidence from micro data, 2002/031

Using representative individual-level data from the first round of the European Social Survey fielded in 2002/03, this article provides an empirical analysis of unionisation in 18 countries of the EU. We show that union density varies considerably in Europe, ranging from 84 per cent in Denmark to 11 per cent in Portugal. Estimating identical models for each country, we find that individuals’ probability of union membership is significantly affected by their personal characteristics, their attitudes and the characteristics of their workplace, whereas social factors seem to play a minor role. The presence of a union at the workplace and employees’ attitudes concerning strong unions are the two variables most strongly associated with unionisation.