Six Sigma: The role of goals in improvement teams

The tenets of goal theory have been well established as a motivation mechanism in the management literature. However, some quality-management advocates, such as W. Edwards Deming, often criticize the use of goals. This research investigates the tension between goals and quality management in the Six Sigma context. We find empirical support that goals can be effective in Six Sigma improvement teams when teams adhere to the Six Sigma tools and method. However, challenging goals are counterproductive when Six Sigma teams do not use the tools and methods rigorously. This research reconciles the differences between quality management and goal theory by showing that the Six Sigma tools and method interact with goals.     

Performance responses to competition across skill levels in rank‐order tournaments: field evidence and implications for tournament design

Tournaments are widely used in the economy to organize production and innovation. We study individual data on 2775 contestants in 755 software algorithm development contests with random assignment. The performance response to added contestants varies nonmonotonically across contestants of different abilities, precisely conforming to theoretical predictions. Most participants respond negatively, whereas the highest‐skilled contestants respond positively. In counterfactual simulations, we interpret a number of tournament design policies (number of competitors, prize allocation and structure, number of divisions, open entry) and assess their effectiveness in shaping optimal tournament outcomes for a designer.     

Executive Compensation in American Unions

We explore compensation of labor union leaders using U.S. panel data on more than 75,000 organization‐years from 2000 to 2007. We find that membership, estimated average wages, and dues are strongly related to the compensation of the leaders of American labor unions, even after controlling for organization size and organization fixed effects. That is, within the same union over time, higher levels of these measures are associated with higher levels of pay for union leaders.     

“Fair go” for all? Wealth and Risk Aversion of Australian Households*

A mean‐variance framework is applied to Australian household financial portfolios in order to provide estimates of relative risk aversion in the economy. Controlling for various socio‐economic characteristics, we explore whether risk aversion heterogeneity is a function of wealth heterogeneity. In contrast to most studies, we find evidence of very high risk aversion amongst the majority of households of poor households but vastly lower risk aversion amongst the high percentiles in the wealth distribution. Applying a first differences model across three survey waves spanning 2002 to 2010, we find that risk tolerance increases significantly with wealth. Risk tolerance is positively associated with mortgage payments, but rental payments have no relationship. In addition, we found no evidence that holding a university education has any discernible impact on risk aversion. Lastly, we present some preliminary findings as to the impact of financial advice on observed risk aversion. Financial advice is found to accentuating risk aversion, particularly amongst the wealthiest households. The findings have potential implications for the distribution of wealth in Australia that has received renewed interest recently.     

Sunk costs and the measurement of commercial property depreciation

Developments in property markets greatly influence economic growth, monetary policy, productivity measurement, inflation measurement and hence welfare payments to the disadvantaged. Property price bubbles often lead to financial crises; those experienced during the 20th century were often triggered by commercial property price movements. Yet property poses significant challenges for national accountants in producing key economic variables used in informing policy assessment and formulation. To address these challenges, this paper formalizes a framework for measuring prices and quantities of capital inputs for a commercial property. In particular, it addresses problems associated with obtaining separate estimates for the land and structure components of a property, a decomposition of property value that is important for the national accounts, productivity measurement and taxation. A key contribution is to address the problem of estimating structure depreciation taking into account the fixity of the structure. We find that structure depreciation is determined primarily by the cash flows that the property generates rather than physical deterioration of the building. Finally, we provide a framework for the determination of the optimal length of life for a structure.     

Innovation, imitation, and new product performance: The case of China

This paper compares the effects of innovation and imitation strategies on new product performance and examines their contingency across different market conditions in China. The empirical results from a cross-industry survey show that, compared with an imitation strategy, an innovation strategy leads to better new product performance. Furthermore, the benefits of an innovation strategy over an imitation strategy become stronger as market demand is increasingly uncertain, technology changes rapidly, and competition intensifies. The author compares the findings with the predictions put forward in previous Western-based literature and discusses the implications of the findings in light of China's unique market characteristics.     

A Case Study of a Variance Analysis Framework for Managing Distribution Costs*

Managing the distribution function as part of an overall supply‐chain management strategy has become increasingly important given rising fuel costs in recent years. This paper presents a comprehensive variance analysis framework developed by supply‐chain managers at Catalyst Paper Corporation as a tool for reporting and controlling distribution costs. The model decomposes the overall static‐budget variance into four primary variance categories: volume, customer mix, distribution mix, and carrier charges. The framework addresses key limitations in the coverage of variance analysis contained in many management accounting textbooks. Specifically, Catalyst's framework incorporates: (a) mix variance calculations where there is more than one mix factor within a single cost element; (b) the impact of unplanned and unrealized activities; and (c) multiple nested mix variance calculations. Although developed in the context of distribution costs, the framework can be applied to the analysis of other manufacturing and non‐manufacturing costs where multiple mix factors exist. L'importance de la gestion de la fonction de distribution dans le cadre de la stratégie globale de gestion de la chaîne d'approvisionnement s'est accrue avec la hausse des coûts du carburant des dernières années. Les auteurs présentent un cadre complet d'analyse des écarts, élaboré par les gestionnaires de la chaîne d'approvisionnement chez Catalyst Paper Corporation aux fins de la présentation et du contrôle des coûts de distribution. Le modèle décompose l'écart global du budget fixe en quatre grandes catégories d'écarts: les écarts sur volume, les écarts sur composition de la clientèle, les écarts sur composition de la distribution et les écarts sur frais de transport. Le cadre résout les principales limites de la couverture de l'analyse des écarts évoquées dans de nombreux manuels de comptabilité de management. Le cadre d'analyse de Catalyst Paper Corporation englobe: a) les calculs de l'écart sur composition lorsqu'il existe plus d'un facteur de composition dans un même élément de coût; b) l'incidence des activités non planifiées et non réalisées; et c) les calculs de l'écart sur composition à multiples critères de classification. Bien qu'il ait été élaboré dans le contexte des coûts de distribution, ce cadre peut être appliqué à l'analyse d'autres coûts liés ou non à la fabrication, lorsque les facteurs de composition sont multiples.     

Brokerage commissions and margin requirements: With special reference to Japan

In Japan, brokerage commissions and margin requirements are currently regulated by the Ministry of Finance. However, commissions may soon be deregulated. This paper examines several economic factors which determine commissions and margins in a deregulated environment. The analysis is motivated by the observations that for Japan's securities companies, 1) brokerage commissions constitute a large component of their revenues; 2) margin transactions account for a significant proportion of their trading volume; 3) their gross income exhibits a great deal of volatility; 4) income tax is one of their two largest expenses; and 5) they face a significant tax asymmetry.While executing an unmargined long transaction for a customer is a riskless activity, executing either a margined long or a short transaction exposes the firm to some risk and possibly negative profits. While the commission charged by a brokerage firm for executing a riskless (unmargined) long transaction is simply equal to the marginal cost of producing the firm's total number of transactions, it is demonstrated that the gross commission charged for executing either a margined long or a short transaction includes two other components. The first additional component is a risk/tax premium that is determined by the brokerage firm's tax rate and degree of tax asymmetry, the security's volatility, and the customer's margin deposit. The second additional component is the premium required for the implicit put option associated with a margined long transaction, or for the implicit call option associated with a short transaction. The option falls in-the-money if the security's price changes significantly, so that it is optimal for the customer to default on his contract with the brokerage firm.The determinants of the customer's optimal margin, for both long and short transactions, are also examined. The benefit to the customer of depositing a higher margin is that his commission cost declines. For example, with short transactions a higher margin increases the exercise price of the implicit call option, causing both the risk/tax premium and the implicit option premium to decline. However, a higher margin may increase the customer's opportunity cost of capital. Consequently, the optimal margin increases with the firm's tax rate and degree of tax asymmetry, and decreases with the customer's opportunity cost of capital. An increase in the security's volatility has an ambiguous impact on the optimal margin.The authors are from York University, Canada and International University of Japan, respectively. Part of this paper was written while the first author was on leave at Kyoto University, Japan. We acknowledge helpful comments by Richard Arnott, Lawrence Harris, Hiromitsu Ishi, Eliakim Katz, Johannes Raaballe and Lim Kian Guan (the editor).     

Demonstrating the Intensive Benefit to the Local Implementation of a Statewide Building Code

Ultimately, risk reduction from the implementation of building codes is due to not only the extent of the code as it applies to new construction, but also to the intensity of local adoption and enforcement. It is normally an open question as to how well a code is maintained and enforced at the local level, even for a relatively strong adopted statewide code such as the Florida Building Code. We test the importance of the intensity of building code implementation at the local level for reducing Florida windstorm losses by utilizing Building Code Effectiveness Grading Schedule (BCEGS®) rating data. BCEGS ratings provide a joint assessment of local building code effectiveness in terms of the strength of the adopted codes in addition to how well these adopted codes are enforced. We find that both components provide value in reducing windstorm losses in Florida, with the extent of the statewide code being the dominant effect reducing losses on the order of 72 percent. Although not as substantial in terms of its loss reduction magnitude, intensively implementing building codes at the local level by ensuring codes are properly administered and enforced at this scale provides additional loss reduction value on the order of 15–25 percent. Understanding the relative value of these two implementation components is important to better inform building code policy and enforcement efforts given continuously updated codes.