A bivariate model for evaluating equity-linked policies with surrender option

This article proposes a bivariate lattice model for evaluating equity-linked policies embedding a surrender option when the underlying equity dynamics is described by a geometric Brownian motion with stochastic interest rate. The main advantage of the model stays in that the original processes for the reference fund and the interest rate are directly discretized by means of lattice approximations, without resorting to any additional transformation. Then, the arising lattices are combined in order to establish a bivariate tree where equity-linked policy premiums are computed by discounting the policy payoff over the lattice branches, and allowing early exercise at each premium payment date to model the surrender decision.     

WEIGHTED‐AVERAGE LEAST SQUARES (WALS): A SURVEY

Model averaging has become a popular method of estimation, following increasing evidence that model selection and estimation should be treated as one joint procedure. Weighted‐average least squares (WALS) is a recent model‐average approach, which takes an intermediate position between frequentist and Bayesian methods, allows a credible treatment of ignorance, and is extremely fast to compute. We review the theory of WALS and discuss extensions and applications.     

Increasing inequality,consumer credit and financial fragility in an agent based macroeconomic model

We investigate the interplay between increasing inequality and consumer credit in a complex macroeconomic system with financially fragile heterogeneous households, firms and banks. Simulation results show that there are pros and cons of introducing consumer credit: on the one hand, for a certain time, it leads to lower unemployment through boosting aggregate demand; on the other hand, it accelerates the system tendency to the crisis. Since the increase of financial profits goes with a decline of households’ real wealth, a policy trade-off emerges.     

Knightian uncertainty and moral hazard

This paper presents a principal-agent model in which the agent has imprecise beliefs. We model this situation formally by assuming the agent?s preferences are incomplete as in Bewley (1986) [2]. In this setting, incentives must be robust to Knightian uncertainty. We study the implications of robustness for the form of the resulting optimal contracts. We give conditions under which there is a unique optimal contract, and show that it must have a simple flat payment plus bonus structure. That is, output levels are divided into two sets, and the optimal contract pays the same wage for all output levels in each set. We derive this result for the case in which the agent?s utility function is linear and then show it also holds if this utility function has some limited curvature.     

Firm Recruitment Behaviour: Sequential or Non‐sequential Search?

In the extensive job search literature, studies assume either sequential or non‐sequential search. This article introduces a novel method to test the hypothesis that firms search sequentially based on the relationship between the number of rejected job applicants and the number of filled vacancies. We distinguish between ten different search methods. For most search methods, including methods that rely on social networks and temporary help agencies, we find that sequential search cannot be rejected. However, when firms use advertising or public/private employment agencies, sequential search is rejected. Hence, we find that both forms of search are relevant for our understanding of the labour market. Further, the form of search is closely related to the search method used.     

Eliciting Consumer Preferences for Certified Animal‐Friendly Foods: Can Elements of the Theory of Planned Behavior Improve Choice Experiment Analysis?

Models used in neoclassical economics assume human behavior to be purely rational. On the other hand, models adopted in social and behavioral psychology are founded on the “black box” of human cognition. In view of these observations, this paper aims at bridging this gap by introducing psychological constructs in the well‐established microeconomic framework of choice behavior based on random utility theory. In particular, it combines constructs developed employing Ajzen's theory of planned behavior with Lancaster's theory of consumer demand for product characteristics to explain stated preferences over certified animal‐friendly foods (AFF). To reach this objective, a Web survey was administered in the largest five EU‐25 countries: France, Germany, Italy, Spain, and the United Kingdom. Findings identify some salient cross‐cultural differences between northern and southern Europe and suggest that psychological constructs developed using the Ajzen model are useful in explaining heterogeneity of preferences. Implications for policymakers and marketers involved with certified AFF are discussed.     

Indebted state versus intermediary state: who owes what to whom?

Ratios of public debt to GDP are much discussed these days and questions concerning debt relative to taxation have long been explored by fiscal scholars. With respect to monarchical regimes, it seems reasonable to treat public debt as similar to personal debt, recognizing that a monarch is not an ordinary person. When public debt arises through parliamentary assemblies, however, the similarity of form between public and personal debt vanishes because a parliamentary assembly does not trade on its own account; to the contrary, it is a type of intermediary that brings together people who buy bonds and people who later pay the bondholders. In a republic there is no sovereign who is indebted to ruled subjects. The institutional framework of republican governance transforms public borrowing into a process of intermediation among citizens, which leads in turn to the alternative orientation toward public debt that this paper explores.     

Reforming the reform: changing roles for accounting and management in the Italian health care sector

This paper examines the ways in which accounting has intervened in the process of reforming the original ‘reform’ of the Italian health care system. By stepping into an ongoing process accounting has been asked not only to foster efficiency, effectiveness and value for money, but to correct as well the ‘degeneration’ of the original reform, which subjected health care delivery to ‘democratic’ scrutiny and political control. The call for a greater accountability in the use of public resources has been thus interpreted as both a mechanism of surveillance and control and a way to resist the ‘over-politicization’ of health sector management together with the abuses, scandals and fraudulent behaviour it induced. In seeking to interpret the specificity of the Italian experience, the paper suggests that the range of ‘the contexts in which accounting operates’ should be broadened in order to gain a deeper understanding of its roles in those institutions, such as health care systems, which play a crucial role in modern societies. In order to move in this direction systematic and empirically grounded cross-national comparisons are called for, since, although accounting and management are involved in virtually all attempts to redesign health care services, consequences are likely to be different when conditions of possibility differ at the outset.