Ideational item Avoiding the pitfalls of managementThink

Productive, structured, and efficient thinking is often the only kind encouraged by companies—at least, until they notice that such thinking can harden into unimaginative and rigid patterns. Every manager and every company needs to take time to try out new thinking patterns and look at possibilities in new ways.     

Business ethics in Italy: The state of the art

Up until now, the work which has been done in Italy might be considered of a preparatory nature. In 1985 and in 1986, the association of Catholic businessmen produced two documents on the ethical implications of economic activity. But in those years, the world of big business, had not yet realised how central the argument was becoming.The first significant signs of interest for business ethics appeared in 1987. In June, 1988, the first Italian National Conference on Business Ethics took place in Milan. The main outcome of that conference has been the constitution of the Italian Chapter of the European Network. In 1988, I founded the first issue of the journal entitled Etica degli-Affari. Promotional efforts have developped along two lines. The first regards programs of executive training and, eventually, consulting. In the second place, efforts are being made to elaborate and introduce codes of ethics in Italian corporations. There are, however, some very fundamental difficulties involved in the promotion of Business Ethics in Italy. The first problem is the fact that Italy is a country with a low ethical temperature. We don't have a strong sense of national identity, nor do we have a strong sense of the state. The second difficulty has to do with the business environment — the Italian business community itself. As a self-conscious, self-aware nucleus of a sector of society, the Italian business community is a very recent, and rather minoritarian social phenomenon.I personally feel that a certain protagonism on the part of prominent business leaders who are quite sensitive to the theme of ethics would prove to be very influential and greatly accelerate the process.Mario Unnia is managing director of Prospecta, a research firm, Milan, Italy. He has lectured and published extensively in the fields of Business and Public Policy, Corporate Culture and Labour Relations. He has founded and is chairman of the Italian Business Ethics Network. He is editor of Etica degli Affari.     

Warehouse receipt financing for smallholders in developing countries: Challenges and limitations

A warehouse receipt is a document issued by a warehouse operator as evidence that a specified commodity of stated quantity and quality has been deposited at a particular warehouse by a named depositor. When backed by an appropriate legal and regulatory framework, a warehouse receipt becomes a formal financial instrument that allows the depositor to confer a security interest in the stored commodity to another party without requiring physical delivery, allowing the warehouse receipt to serve as possessory collateral for a loan. Warehouse receipt financing, in theory, permits smallholders farmers in developing countries to store their surplus safely in a modern warehouse to sell at a later date when prices are higher, while allowing them to use the stored commodity as collateral to secure a loan to finance household consumption and investment needs in the interim. However, in practice, warehouse receipt financing generally has not been embraced by smallholders in developing countries in which it is available. Here, we develop and analyze a formal stochastic dynamic model of seasonal commodity marketing that exposes the transaction cost and risk reallocation problems that undermine the benefits of warehouse receipt financing to smallholders.     

Budgeting in Times of Economic Crisis

This article examines how corporate reliance on budgets is affected by major changes in the economic environment. We combine survey and archival data from the economic crisis that began in 2008. The results indicate that budgeting became more important for planning and resource allocation but less important for performance evaluation in companies affected more strongly by the 2008 economic crisis. Additional evidence from interviews and data gathered in a focus group further illustrate these results and show the changes organizations have introduced to respond to the economic crisis. Taken together, and contrary to more general conclusions from the literature such as an overall increase or decrease in the importance of budgeting, we find that companies emphasize certain budgeting functions over others during economic crises.     

Current Accounts in the Long Run and the Intertemporal Approach: A Panel Data Investigation

This paper is a theory‐based study of the long‐run determinants of the current account (CA). For many OECD economies after the Second World War, there has been more long‐run variation in the CA data than is emphasised by a ‘Permanent Income’ version of the intertemporal approach that is based on consumption‐smoothing and that allows only transitory CA imbalances. A theoretical model of the CA is developed, based on the ‘broader’ variant of the intertemporal approach that stresses the long‐term component of the CA. We find that some key theoretical predictions hold, while others fail, validating the approach but also pointing to its limitations.     

Markov decision processes under model uncertainty

We introduce a general framework for Markov decision problems under model uncertainty in a discrete-time infinite horizon setting. By providing a dynamic programming principle, we obtain a local-to-global paradigm, namely solving a local, that is, a one time-step robust optimization problem leads to an optimizer of the global (i.e., infinite time-steps) robust stochastic optimal control problem, as well as to a corresponding worst-case measure. Moreover, we apply this framework to portfolio optimization involving data of the . We present two different types of ambiguity sets; one is fully data-driven given by a Wasserstein-ball around the empirical measure, the second one is described by a parametric set of multivariate normal distributions, where the corresponding uncertainty sets of the parameters are estimated from the data. It turns out that in scenarios where the market is volatile or bearish, the optimal portfolio strategies from the corresponding robust optimization problem outperforms the ones without model uncertainty, showcasing the importance of taking model uncertainty into account.     

Optimal insurance under maxmin expected utility

We examine a problem of demand for insurance indemnification, when the insured is sensitive to ambiguity and behaves according to the maxmin expected utility model of Gilboa and Schmeidler (J. Math. Econ. 18:141–153, 1989), whereas the insurer is a (risk-averse or risk-neutral) expected-utility maximiser. We characterise optimal indemnity functions both with and without the customary ex ante no-sabotage requirement on feasible indemnities, and for both concave and linear utility functions for the two agents. This allows us to provide a unifying framework in which we examine the effects of the no-sabotage condition, of marginal utility of wealth, of belief heterogeneity, as well as of ambiguity (multiplicity of priors) on the structure of optimal indemnity functions. In particular, we show how a singularity in beliefs leads to an optimal indemnity function that involves full insurance on an event to which the insurer assigns zero probability, while the decision maker assigns a positive probability. We examine several illustrative examples, and we provide numerical studies for the case of a Wasserstein and a Rényi ambiguity set.