What is the optimal scope of operations for firms? This question has particular relevance for the U.S. hospital industry, because understanding the effects of focus and spillovers might help hospitals determine how they should balance focusing in a single clinical area with building expertise in related areas. While some scholars argue that narrowing an organization's set of activities improves its operational efficiency, others have noted that seemingly unfocused operations perform at a high level and that a broader range of activities may in fact increase firm value. This study by HBS doctoral student Jonathan Clark and professor Robert Huckman highlights the potential role of spillovers—specifically complementary spillovers—in generating benefits from focus at the operating unit level.
Published in 2008
Cutting the wrong employees can be counterproductive for retailers, new research from Harvard Business School professor Zeynep Ton concludes. One suggestion: Pay attention to staff who handle mundane tasks such as stocking and labeling. Your customers do.
Some 900 Harvard Business School students were asked to recreate a study assessing the potential "offshorability" of more than 800 occupations in the United States. Their findings: It might be a larger number than we thought.
Determining staffing levels is an important decision in retail operations. In 2006, retailers spent $393 billion on employee wages, more than 10 percent of their revenue that year and more than their inventory holding costs. Hence, staffing levels have a major impact on retailers' costs. But at the same time, staffing levels affect conformance quality—how well employees execute prescribed processes—and service quality—the extent to which customers have a positive service experience at the stores. While there is overwhelming evidence that conformance quality and service quality improve sales, both generally and in retail settings, their effect on profitability is not clear. To examine how the amount of labor at a store affects profitability through its impact on conformance quality and service quality, Zeynep Ton analyzed extensive data from stores of a large retailer.
Managing products at the end of life (EOL) is of growing concern for durable goods manufacturers. While some manufacturers engage in voluntary "take back" of EOL products for a variety of competitive reasons, the past 10 years have seen the rapid proliferation of government regulations and policies requiring manufacturers to collect and recycle their products, or pay others to do so on their behalf. Toffel, Stein, and Lee develop a framework for evaluating the extent to which these product take-back regulations offer the potential to reduce the environmental impacts of these products in an effective and cost-efficient manner, while also providing adequate occupational health and safety protection. The evaluation framework is illustrated with examples drawn from take-back regulations in Europe, Japan, and the United States.
It was the Valentine's Day from hell for JetBlue employees and more than 130,000 customers. Under bad weather, JetBlue fliers were trapped on the runway at JFK for hours, many ultimately delayed by days. How did the airline make it right with customers and learn from its mistakes? A discussion with Harvard Business School professor Robert S. Huckman.
Products are often said to "mirror" the architectures of the organization from which they come. Is there really a link between a product's architecture and the characteristics of the organization behind it? The coauthors of this working paper chose to analyze software products because of a unique opportunity to examine two different organizational modes for development, comparing open-source with proprietary "closed-source" software. The results have important implications for development organizations given the recent trend toward "open" approaches to innovation and the increased use of partnering in research and development projects.
Can lean production methods be used in service industries? How can operations be used to competitive advantage? These are several of the questions answered in this month's Sharpening Your Skills on the topic of operations management.
Published in 2007
Toyota and other top manufacturing companies have embraced, improved, and profited by lean production methods. But the payoffs have not been nearly as dramatic for service industries applying lean principles. HBS professor David Upton and doctoral student Bradley Staats look at the experience of Indian software services provider Wipro for answers.
For the last 30 years economists have used the concepts of "transaction," "transaction cost," and "contract" to illuminate a wide range of phenomena, including vertical integration; the design of employment, debt, and equity contracts; and the structure of industries. These concepts are now deeply embedded in the fields of economics, sociology, business, and law. Theories explain how to choose between different forms of transactional governance. But why does a transaction occur where it does? Without this answer, the forces driving the location of transactions in a system of production remain largely unexplored. This paper explains the location of transactions (and contracts) in a system of production. It also presents a theory of technological change that predicts changes in the location of transactions and therefore in the structure of industries.
Research in psychology over the past several decades teaches us that behavioral biases and cognitive limits are not just "noise"; they systematically affect (and often distort) people's judgment and decision making. Despite such advances, however, most scholarly research in operations management still assumes that agents—be they decision makers, problem solvers, implementers, workers, or customers—either are fully rational or can be induced to behave rationally, usually with economic incentives. This paper builds on earlier studies to explore the theoretical and practical implications of incorporating behavioral and cognitive factors into operations management models. It then points to fruitful areas for future research.
Organizational behavior has become an increasingly important aspect of operations management. In this paper, alignment refers to an organization's sales and manufacturing groups working toward the same target for the sales of a particular product. What are the best conditions in supply chain planning for alignment across functions and across the firm? Kraiselburd and Watson push the frontier of theory with their use of mathematical modeling and game theory. They show that seemingly behavioral and psychological effects may still occur if both parties are rational profit maximizers in an economic sense.
Designers have long recognized the value of modularity. But because design principles are informal, successful application depends on the designers' intuition and experience. Intuition and experience, however, do not prevent a company such as Microsoft from constantly grappling with unanticipated challenges and delays in bringing software to market. Clearly, designers need a formal theory and models of modularity and software evolution that capture the essence of important but informal design principles and offer ways to describe, predict, and resolve issues. This paper evaluates the applicability of model and theory to real-world, large-scale software designs by studying the evolution of two complex software platforms through the lens of design structure matrices (DSMs) and the design rule theory advanced by Kim Clark and Carliss Baldwin.
Benchmarking and forecasting firm level performance are key activities for both managers and investors.
Retailer performance can be tracked using a number of metrics including sales, inventory, and gross margin. For operational reasons, the sales, inventory, and gross margin for a retailer are interrelated. Retailers often use inventory and margin to increase sales; and sales, conversely, provide input to the retailer's decisions on inventory and margins. Inventory and margin also influence each other. This research uses firm-level annual and quarterly data for a large cross-section of U.S. retailers listed on NYSE, AMEX, or NASDAQ to construct a model that examines the interrelationships among sales per store, inventory per store, and margin.
The interdisciplinary research of economist Kim Clark, former dean of Harvard Business School and now President of Brigham Young University-Idaho, occupies a unique place in management scholarship for three reasons. First, he tended to focus on little known and under-appreciated management groups such as manufacturing managers, product development managers, and product and process architects. Thus, he directly positioned himself outside the "traditional" management disciplines of strategy, finance, marketing, and organizational behavior. Second, he swam against the academic tide by recognizing the power of comparative and longitudinal field studies. Third, he sought frameworks beyond his own field in design theory, the engineering sciences, and finance. This paper reviews his research contributions over almost thirty years.
Self-regulation has been all over the news, but are firms that adopt such programs already better on important measures like labor and quality practices? Does adopting a program help companies improve faster? In this Q&A, HBS professor Michael Toffel gives a reality check and discusses the trends for managers.
Scholars have long been interested in the impact of information technology on the organization of work. As Andrew McAfee and colleagues argue in this study, the appropriate governance mechanism for an IT-facilitated collaboration depends on the type of IT being deployed: When an enterprise technology is required, so is an electronic hierarchy. The paper explores the issue of relationship specificity of IT assets, proposes a categorization of information technologies based on their levels of relationship specificity, and uses data from more than forty Italian industrial districts to test three hypotheses around governance of interfirm IT. These districts typically have close ties, both horizontal and vertical, and have historically worked in close collaboration with each other.
In research surrounding inventory policies, there is a prevailing assumption of completely rational agents. In practice, however, deviations from the optimal policy abound, and analytical models to understand the effects of inventory dynamics on practice may require ways to model these deviations. Modeling deviations from the optimal policy is also important for better understanding inventory systems and supply chains. The term "perceptions" in Watson's research is not meant in its conventional sense, as in the perceptions of individual managers, but rather forms the basis for a framework for modeling and categorizing a range of inventory policies, including optimal inventory policy. This paper, which is a technical article meant more for an academic audience, explores the usefulness of his framework for categorizing the range of inventory policies that can be employed in a single-stage supply chain.
Published in 2006
By their very nature, consensus forecasts contain subjective elements that can compromise forecast accuracy. In this case study of the implementation of a sales and operations planning process in a consumer electronics company, Oliva and Watson studied the organizational and political dimensions of forecast generation and improvement. Ultimately, consensus forecasting constructively managed the influence of biases (such as overconfidence) on forecasts.
Why do companies have such a hard time getting various functions to coordinate? Leitax, the pseudonym for a consumer electronics company studied by the authors, was suffering major supply-chain planning problems in 2002. The chief reason was typical to organizations: poor integration among the various functions. In response, the company introduced a system (rather than just a set of mechanisms) to better coordinate all processes and functions. The new system led to better collaboration from all participants, improved information-sharing, accurate and validated plans, and alignment in the execution of those plans.
