Valuing the implicit guarantee of the Federal National Mortgage Association

The paper analyzes the guarantee of the Federal National Mortgage Association (FNMA). Rather than try to price the guarantee, we used time-series estimates of its value from Kane and Foster to infer the behavior of FNMA in exploiting the guarantee. The results are consistent with a model that predicts that FNMA does not take as much risk as it might. Rather, it trades off risk and return, but it does increase risk and exploit the guarantee when it gets in trouble (as it did in 1981).We have received helpful research assistance from Peter Carr and Bruno Gerard.     

How industrial salespeople gain customer trust

This study investigated how industrial salespeople gain the trust of their customers. Results show that trust increases as the customer gains the impression that the salesperson is dependable, honest, competent, customer oriented, and likeable. Based on the results, a general model of trust building is suggested.     

An ideal Kyoto protocol: emissions trading, redistributive transfers and global participation

We demonstrate that an interregional policy scheme featuringtrading of carbon dioxide emissions, redistributive resourcetransfers and global participation, a scheme which we call ‘IdealKyoto Protocol’, yields an efficient equilibrium allocationfor a global economy. An altruistic international agency—say,the Global Environment Facility—should operate the resourcetransfer mechanism. In addition, regional governments shouldbe able to make independent policy commitments regarding howto control regional emissions of carbon dioxide in anticipationof the redistributive transfers. Our efficiency result suggeststhat the USA should be ‘bribed’ to reverse its decisionof not participating in the Kyoto Protocol.     

Metatheory as the key to understanding: Schumpeter after Shionoya

In his recent book, Yuichi Shionoya departs from previous Schumpeterianstudies. He sets out to reconstruct Schumpeter's metatheoreticalframework, which he argues is the key to a correct interpretationof his substantive writings. The centrepiece of this projectis the thesis that Schumpeter has a coherent methodologicalposition—instrumentalism—which consistently underpinshis theoretical work. The present paper examines this thesis,and in so doing paves the way for an alternative hypothesison Schumpeter. This hypothesis is based on Tony Lawson's workon the philosophy of economics.     

Homeownership as a Constraint on Asset Allocation

Personal preferences and financial incentives make homeownership desirable for most families. Once a family purchases a home they find it impractical (costly) to frequently change their ownership of residential real estate. Thus, by deciding how much home to buy, a family constrains their ability to adjust their asset allocation between residential real estate and other assets. To analyze the impact of this constraint on consumption, welfare, and post-retirement wealth, we first investigate an individual’s optimal asset allocation decisions when they are subject to a “homeownership constraint.” Next, we perform a “thought experiment” where we assume the existence of a market where a homeowner can sell, without cost, a fractional interest in their home. Now the housing choice decision does not constrain the individual’s asset allocations. By comparing these two cases, we estimate the differences in post-retirement wealth and the welfare gains potentially realizable if asset allocations were not subject to a homeownership constraint. For realistic parameter values, we find that the homeowner would require a substantial increase in total net worth to achieve the same level of utility as would be achievable if the choice of a home could be separated from the asset allocation decision. The robustness of the analysis is evaluated with respect to the model’s parameters and initial state variables. We find that changes in the values of the constraint (i.e., the value of the home) and the expected real rate of home value appreciation are the only state variables or parameter that is associated with a large change in asset allocation and/or the burden imposed by the housing constraint. This finding suggests the importance of a detailed examination of the impact of inter-regional differences in home prices and expected rates of appreciation on asset allocation and post-retirement wealth.     

Optimal investment and production decisions and the value of the firm

We explore the effects of uncertainty on a firm that can respond by modifying its investment or production schedule (or both simultaneously) to variations in output price. Investment may increase capacity and/or reduce costs. We consider a firm with finite resources.Our model uses option theory instead of the more traditional net present value framework. One of the early papers using this approach is Brennan and Schwartz (1985) in which an investment project to extract a finite natural resource is valued. In that paper, the value of the firm is a function of two state variables, the finite resource to be extracted (output to be produced in the future) and the commodity spot price. In order to maximize firm value, the manager can respond by modifying one control variable, the production level. In our model we handle instead three state variables (spot price, resources, accumulated investment) and two control variables (production rate and investment rate), and solve numerically.We obtain both the value and the optimal policy of a firm that has investment projects that increase capacity and/or reduce costs and illustrate optimal policies as resources and available investments decrease over the life of the firm. Firms may start by only investing, then invest and produce, to end only producing.We thank Scott Wo, the referee and the editor for their comments and suggestions. Cortázar and Lowener acknowledge the financial support from FONDECYT and FONDER.     

Putting ethics and economic rationality together: an Aristotelian and philosophical approach

The gap between economic rationality, as embedded in utility maximization, and ethical rationality, identified with a set of rules that prescribe the right course of action, has been a challenging issue for economists, philosophers, and business ethicists. Despite the difference and the noncompetition between a scientific economic approach of economics and business ethics, and a behavioral and philosophical one, we highlight the importance of the Aristotelian concept of prudence or phronesis applied to business activity. Phronesis allows for a conceptualization of rationality that can be simultaneously applied to economics and ethics. It also allows conceiving the intrinsically ethical nature of economic rationality. This relationship requires an appropriate education and the intervention of the state.     

Pedestrian traffic injuries in Mexico: A country update

Road traffic injuries in general and pedestrian injuries in particular are a major public health problem in Mexico, especially in large urban areas. Analysis of mortality and road crashes at the national level was done using routine data recorded on death certificates. Fatality rates for different age groups were estimated by region for the year 2000. These data were supplemented by a cross-sectional study of pedestrian injuries in Mexico City based on death certificates information for pedestrians who lived and died in Mexico City between 1994 and 1997. Participant observation of physical spaces where crashes occurred was carried out. The spaces were filmed and in-depth interviews of survivors conducted. Road traffic crashes were responsible for approximately 17,500 deaths in Mexico during 2000. The mean age of the victims was 37 years. Mexico lost an average of 30 years of productive life for each individual who died in a traffic crash – 525,000 years in 2000. An estimated 9500 (54.3%) of all fatalities were pedestrians, and for every pedestrian death there were 13 others who sustained nonfatal injuries requiring medical care. The overall crude mortality rate for pedestrian injuries in Mexico City was 7.14 per 100,000 (CI 6.85-7.42). A concentration of deaths was observed in 10 neighborhoods at specific types of street environments. The underlying factors included dangerous crossings and the absence or inadequacy of pedestrian bridges, as well as negative perceptions of road safety by pedestrians. In conclusion, this study demonstrates the importance of elucidating the underlying contextual determinants of pedestrian injuries.     

Wild cards, weak signals and organisational improvisation

This paper addresses the need for reliable action guidelines which can be used by organisations in turbulent environments. Building on current conceptual and empirical research, we suggest an analytical approach to the management of surprising and potentially damaging events. In order to do so we propose the wild card management system. Wild cards refer to sudden and unique incidents that can constitute turning points in the evolution of a certain trend. As the first of the two components of such a wild card system, we advocate a weak signal methodology to take into account those wild cards that can be anticipated by scanning the decision environment. The second component, the nurture of improvisation capabilities, is designed to deal with unanticipated ongoing crises. This paper can be seen as part of a broader agenda on how to manage in conditions of continuous but unpredictable change.