Session Topic: Individual Investors and Mutual Funds

Summary . The modern theory of finance suggests that most investors should put part or all of their money into a “market portfolio” mixed with borrowing or lending. Empirical evidence generally supports the theory, but there are some unanswered questions about the composition of the best market portfolio, about the apparent attractiveness of low risk stocks relative to high risk stocks, and about ways of minimizing transaction costs. Attempts to create a fund based on these principles and to make it available to a large number of investors have uncovered some important problems. Legal costs due to government regulation, the costs of managing a fund, and especially the costs of selling it are all much higher than one might expect. Despite these problems, efforts to create such funds seem destined for eventual success.     

Application of the controllability principle and managerial performance: The role of role perceptions

The controllability principle stipulates that the evaluation of a manager should be based only on elements that are under the manager's control. Arguments for and against its application are theoretically well understood, but empirical evidence based on the evaluation of the perceptions of managers and their implications for managerial performance is scarce. By empirically analyzing the effects on managerial performance, this paper explores managers’ responses to the application of the controllability principle. We draw on role theory and analyze how role ambiguity and role conflict mediate this basic relationship. Moreover, we test whether application of the controllability principle equally affects role perceptions of top-level managers and those of lower and middle-level managers. Empirical analysis of survey responses from 440 managers reveals that role perceptions completely mediate the effect of application of the controllability principle on managerial performance. This effect is insignificant in the group of top-level managers, who appear to cope with uncontrollable factors more effectively.     

Competing Environmental Labels

We study markets in which consumers prefer green products but cannot determine the environmental quality of any given firm's product on their own. A nongovernmental organization (NGO) can establish a voluntary standard and label products that comply with it. Alternatively, industry can create its own standard and label. We compare the stringency of these two types of labels, and study their strategic interaction when they coexist. We find that even with error‐free labels, environmental benefits may be smaller with two labels than with the NGO label alone, and we characterize when label competition is more likely to be environmentally beneficial.     

Mentoring: A Path to Prosocial Behavior

Public accounting firms can build integrity within their organizations through early detection of fraud. One way to reduce and detect fraud is to encourage whistleblowing as a prosocial behavior. We explore the impact of mentoring on intention to report fraud. A survey with 120 responses from the US public accountants suggests that quality mentoring relationships, a common feature in the profession, and caring ethical climate positively relate to internal reporting of fraud. Two intermediate variables, trust and affective commitment, mediate these effects. Mentor-relationship quality also increases perceptions of caring ethical climate. The study contributes to two bodies of research by (1) finding extended benefits from mentoring, beyond those typically discussed in academic literature; and (2) identifying a previously unexplored firm intervention capable of positively influencing prosocial behavior and combating fraud.     

GOVERNMENT DECENTRALIZATION AS A DISINCENTIVE FOR TRANSNATIONAL TERROR? AN EMPIRICAL ANALYSIS*

Using panel data for a maximum of 109 countries over the years 1976–2000, we empirically analyze the impact of decentralization on the occurrence of transnational terror. Our results show that expenditure decentralization reduces the number of transnational terror events in a country, while political decentralization has no impact. These results are robust to the choice of control variables and method of estimation.     

Marginal Abatement Cost Curves for UK Agricultural Greenhouse Gas Emissions

This article addresses the challenge of developing a ‘bottom‐up’ marginal abatement cost curve (MACC) for greenhouse gas (GHG) emissions from UK agriculture. An MACC illustrates the costs of specific crop, soil and livestock abatement measures against a ‘business as usual’ scenario. The results indicate that in 2022 under a specific policy scenario, around 5.38 Mt CO₂ equivalent (e) could be abated at negative or zero cost. A further 17% of agricultural GHG emissions (7.85 Mt CO₂e) could be abated at a lower unit cost than the UK Government’s 2022 shadow price of carbon [£34 (tCO₂e)^?1]. The article discusses a range of methodological hurdles that complicate cost‐effectiveness appraisal of abatement in agriculture relative to other sectors.     

General Bayesian time-varying parameter vector autoregressions for modeling government bond yields

US yield curve dynamics are subject to time-variation, but there is ambiguity about its precise form. This paper develops a vector autoregressive (VAR) model with time-varying parameters and stochastic volatility, which treats the nature of parameter dynamics as unknown. Coefficients can evolve according to a random walk, a Markov switching process, observed predictors, or depend on a mixture of these. To decide which form is supported by the data and to carry out model selection, we adopt Bayesian shrinkage priors. Our framework is applied to model the US yield curve. We show that the model forecasts well, and focus on selected in-sample features to analyze determinants of structural breaks in US yield curve dynamics.