On Lipschitz continuity of the iterated function system in a stochastic optimal growth model

This paper provides qualitative properties of the iterated function system (IFS) generated by the optimal policy function for a class of stochastic one-sector optimal growth models. We obtain, explicitly in terms of the primitives of the model (i) a compact interval (not including the zero stock) in which the support of the invariant distribution of output must lie, and (ii) a Lipschitz property of the iterated function system on this interval. As applications, we are able to present parameter configurations under which (a) the support of the invariant distribution of the IFS is a generalized Cantor set, and (b) the invariant distribution is singular.     

Option Pricing For Jump Diffusions: Approximations and Their Interpretation

We derive a computable approximation for the value of a European call option when prices satisfy a jump-diffusion model with the coefficients depending explicitly on time. This is achieved by approximating the original coefficients with functions that are piecewise constant in time. We give an interpretation of the approximating option values, in particular in the context of a discrete-time model associated with the approximating continuous-time model.     

MVM's Nonlinear Internationalization: A Case Study

This article aims to contribute to the international and East-West business literature by discussing the nature of nonlinear internationalization based on a case study of an Italian firm, Meccanica Valle Metauro S.r.l., that had activities in Central and Eastern Europe and other countries and by identifying causes of nonlinearities. The study concludes that nonlinear internationalization may be caused by different internal and external factors and actors; that it can occur once or several times; that foreign market exit may be temporary (followed by re-entry) and permanent; and that de-internationalization does not always mean a failure for the firm.     

Antecedents of Corporate Scandals: CEOs’ Personal Traits, Stakeholders’ Cohesion, Managerial Fraud, and Imbalanced Corporate Strategy

This study examines the antecedents of corporate scandals. Corporate scandals are defined as rare events occurring at the apex of corporate fame when managerial fraud suddenly emerges in conjunction with a significant gap between perceived corporate success and actual economic conditions. Previous studies on managerial fraud have examined the antecedents of illegal acts in isolation from strategic decisions and in terms of CEOs’ individual responses to the external context. This study frames the antecedents of corporate scandals in terms of the interplay of CEOs’ personal traits with corporate strategy and stakeholders’ cohesion. With this aim, this study builds on extant theory to examine the case of Banca Popolare di Lodi, an Italian bank involved in a corporate scandal in year 2005. The model contributes to advance understanding of the complex dynamics underlying the emergence of corporate scandals.     

The different roles played by venture capital and private equity investors on the investment activity of their portfolio firms

Venture capital (VC) and private equity (PE) investors play different roles in their portfolio companies. We argue that this will translate in a recognizable difference in the investment sensitivity to cash flows of portfolio companies and its evolution after the first investment round. We hypothesise that VC, thanks to its ability in overcoming asymmetries in information, will entail a reduction in the financial constraints which hampered the growth of investee firms. We predict, instead, a greater dependency of investments to cash flow for PE-backed companies, driven by the renewed interest for growth of their management combined with higher leverage. We find evidence confirming our hypotheses on a large panel of Spanish unlisted firms in low and medium technology sectors, where both VC and PE firms are active.     

Spatial Ethics Beyond the North–South Dichotomy: Moral Dilemmas in Favelas

Journal of Business Ethics - Western representation of countries from the Global South implies a dichotomist view of business ethics: on the one hand, universal ethics largely reproduces...     

The price stabilization effects of the EU entry price scheme for fruit and vegetables

The article assesses the stabilization effects of the EU import regime for fresh fruit and vegetables based on the entry price system (EPS). The analysis is carried out on the EU prices of tomatoes and lemons and those of imports from some of the main competing countries on the EU domestic markets: Morocco, Argentina, and Turkey. It is based on the estimation of a threshold vector autoregressive econometric model that is shown capable of taking the workings of the import regime into account. The model shows that prices behave differently when import prices are above/below the trigger entry price. This article allowed to highlight the cases for which the isolation effect of EPS seems reached and the resulting stabilization effects.     

Optimal reserve management and sovereign debt

Most models currently used to determine optimal foreign reserve holdings take the level of international debt as given. However, given the sovereign's willingness-to-pay incentive problems, reserve accumulation may reduce sustainable debt levels. In addition, assuming constant debt levels does not allow addressing one of the puzzles behind using reserves as a means to avoid the negative effects of crisis: why do not sovereign countries reduce their sovereign debt instead? To study the joint decision of holding sovereign debt and reserves, we construct a stochastic dynamic equilibrium model calibrated to a sample of emerging markets. We obtain that the reserve accumulation does not play a quantitatively important role in this model. In fact, we find the optimal policy is not to hold reserves at all. This finding is robust to considering interest rate shocks, sudden stops, contingent reserves and reserve dependent output costs.     

RISK MEASURES: RATIONALITY AND DIVERSIFICATION

When there is uncertainty about interest rates (typically due to either illiquidity or defaultability of zero coupon bonds) the cash‐additivity assumption on risk measures becomes problematic. When this assumption is weakened, to cash‐subadditivity for example, the equivalence between convexity and the diversification principle no longer holds. In fact, this principle only implies (and it is implied by) quasiconvexity. For this reason, in this paper quasiconvex risk measures are studied. We provide a dual characterization of quasiconvex cash‐subadditive risk measures and we establish necessary and sufficient conditions for their law invariance. As a byproduct, we obtain an alternative characterization of the actuarial mean value premium principle.