Holliston Helping Hands

This case focuses on fraud investigation in a not‐for‐profit organization, along with an examination of governance and management control practices. The student assumes the role of an accountant investigating a possible fraud. The student is first presented with sample invoices paid by the organization that are fraught with irregularities and red flags of potential fraud. Drawing on the student's knowledge of control systems and corporate governance, the student's task is to identify suspicions of possible fraudulent transactions, identify key suspects, and develop an investigative plan. The class can also discuss recommendations to improve governance and control mechanisms to avoid future occurrences of fraud. The case is presented in three parts, and closely parallels a fraud investigation as additional information is revealed in each successive part of the case. This is much like peeling the layers of an onion which is a common way to describe the evolution of a fraud investigation. This case is based on a real fraud investigation conducted by one of the authors who was engaged by the province's Ministry of Health. Students who express disbelief about issues portrayed in the case can be reassured that these faithfully represent actual events.     

Dynamic modelling of agroforestry and soil fertility interactions: implications for multi-disciplinary research policy

This paper attempts to contribute to one of the major aspects of international research agenda in agroforestry. A general framework is developed in this paper to capture the dynamic interactions of various components of agroforestry system. Using a multi-seasonal model of agroforestry, the competition among the system components in resource and input use and the trade-offs between different outputs of agroforestry system are analyzed. Policy implications for multi-disciplinary research are derived. It is argued that quantifying the potential benefits of agroforestry system requires reformulation of existing economic methods of analyzing agroforestry technology to contribute to the fuller understanding of the dynamic interactions among its various components.     

Linking green purchasing capabilities to environmental and economic performance: The moderating role of firm size

This study identifies firms’ green purchasing capabilities, classified into operational capabilities and dynamic capabilities, and measures their effects on the environmental and economic performance of a firm. We developed instruments to measure operational green purchasing capabilities and dynamic green purchasing capabilities. This study also investigates the moderating effect of firm size on the relationship between green purchasing capabilities and firm performance. The structural equation model (SEM) is used to analyse 239 responses from Japanese manufacturing companies. The results indicate that their green purchasing capabilities positively affect environmental and economic performance. Operational capabilities and dynamic capabilities have different levels of effects on green purchasing performance. A further analysis of the moderating effect of firm size shows that the high economic performance of green purchasing relies on the level of dynamic capabilities rather than firm size.     

Subscription Mechanisms for Network Formation

We analyze a model of network formation where the costs of link formation are publicly known but individual benefits are not known to the social planner. The objective is to design a simple mechanism ensuring efficiency, budget balance, and equity. We propose two mechanisms towards this end; the first ensures efficiency and budget balance but not equity. The second mechanism corrects the asymmetry in payoffs through a two-stage variant of the first mechanism. Journal of Economic Literature Classification Numbers: C71, C72, D20.     

DEVELOPMENTS IN PUBLIC SECTOR PERFORMANCE MEASUREMENT: A PROJECT ON PRODUCING RETURN ON INVESTMENT METRICS FOR LAW ENFORCEMENT

This paper reports on a project concerned with developing a return on investment (ROI) performance metric for a law enforcement organisation. The paper's contributions are twofold. First, it addresses concerns in the literature about how different stakeholder interests are balanced in the development of performance measures. Second, it helps to remedy an oversight in the literature regarding the hybridisation of accounting and economic expertise, whereby cost benefit techniques and ROI combine to produce a metric of public sector achievements. By virtue of its law enforcement context the paper also discusses a further hybridisation where accounting, economics and criminology/law enforcement intersect.     

Strategic management accounting and strategy practices within a public sector agency

Empirical strategic management accounting (SMA) research has paid insufficient attention to the practices through which strategising occurs. SMA research has also overlooked the importance of strategy in the public sector and the specificities of this context that problematise existing knowledge of techniques that might make up SMA. Consequently, this study examines the role of management accounting in organisational practices through which strategy is enacted, and does this by way of a longitudinal study of a public sector agency. It is informed by the strategy-as-practice perspective that increasingly features in strategy research. The study identifies roles for management accounting in strategising that extend beyond the typically ascribed functions of decision-facilitation and decision-influencing. Its main contribution is the detailing of specific ways in which management accounting is constitutive of strategising through specific organisational practices. The findings of particular management accounting techniques being used for strategising by entities in the public sector provide a useful counter-point to the private sector orientation that has dominated SMA research to date. The study also outlines particular directions that a rebalanced SMA research agenda might take.     

Large time and small noise asymptotic results for mean reverting diffusion processes with applications

Summary. We use the theory of large deviations to investigate the large time behavior and the small noise asymptotics of random economic processes whose evolutions are governed by mean-reverting stochastic differential equations with (i) constant and (ii) state dependent noise terms. We explicitly show that the probability is exponentially small that the time averages of these process will occupy regions distinct from their stable equilibrium position. We also demonstrate that as the noise parameter decreases, there is an exponential convergence to the stable position. Applications of large deviation techniques and public policy implications of our results for regulators are explored. Received: December 7, 1998; revised version: October 25, 1999     

Continuous-Time Methods in Finance: A Review and an Assessment

I survey and assess the development of continuous-time methods in finance during the last 30 years. The subperiod 1969 to 1980 saw a dizzying pace of development with seminal ideas in derivatives securities pricing, term structure theory, asset pricing, and optimal consumption and portfolio choices. During the period 1981 to 1999 the theory has been extended and modified to better explain empirical regularities in various subfields of finance. This latter subperiod has seen significant progress in econometric theory, computational and estimation methods to test and implement continuous-time models. Capital market frictions and bargaining issues are being increasingly incorporated in continuous-time theory.     

Accrual quality,skill, and the cross-section of mutual fund returns

We use returns of actively managed mutual funds to document the link between accrual quality (AQ) and systematic (priced) risk. Despite compelling theoretical arguments, prior research finds no evidence that poor AQ commands a risk premium in the cross-section of realized stock returns. We argue that the previously obtained premium estimates are biased downward because, for a large portion of poor AQ stocks, higher expected returns are offset by the news of deteriorating fundamentals. We suggest that skilled mutual fund managers should be able to either avoid investing in stocks with deteriorating fundamentals or assign them lower portfolio weights. As a consequence, returns on their portfolios should better reflect the expected AQ risk premium. Our empirical evidence is consistent with these predictions.