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Recent Journal Publications by COB Faculty

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Academic Journal
Supply Chain

“The value of strategic management of residential energy storage using a two-threshold control policy”

While the deployment of renewable energy sources as an alternative to fossil fuels has garnered global attention, the intermittent and unpredictable nature of renewables has spurred a growing interest in energy storage. However, effective management of energy storage is far from trivial for residential consumers owing to various compensation and pricing structures, as well as uncertainties in electricity demand and generation. In this paper, we consider a grid-connected residental consumer facing two-part time-of-use tariffs and sellback compensation. We propose an effective battery operating policy utilizing two thresholds --- a ``purchase up-to'' threshold in the off-peak period and a ``sell down-to'' threshold in the peak period. Through a full-factorial numerical experiment, we show that this simple control policy can substantially increase the value of home energy storage while performing nearly as well as battery optimization under certainty, thus leaving little room for improvement from more complex, forecast-driven approaches. From a policy perspective, our results indicate that imposing restrictions on the purchase of electricity from the grid to charge the battery is counter-productive to the adoption of this technology and the health of the grid and environment. In addition, through case studies of U.S. cities, we show that strategically managing home energy storage makes this technology significantly more attractive even in communities where it would add no value when managed passively. Furthermore, real-world implementation in a community setting validates the effectiveness and robustness of the battery management policy established in this paper, highlighting its resilience to changes in billing and compensation plans. Our findings provide valuable insights into the effective utilization of residential energy storage systems under evolving regulatory and market conditions.
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Academic Journal
Management

“Theory Pruning: Strategies for Reducing our Dense Theoretical Landscape”

The current article presents a systematic approach to theory pruning (defined here as hypothesis specification and study design intended to bound and reduce theory). First, we argue that research that limits theory is underrepresented in the organizational sciences, erring overwhelmingly on the side of confirmatory null hypothesis testing. Second, we propose criteria for determining comparability, deciding when it is appropriate to test theories or parts of theories against one another. Third, we suggest hypotheses or questions for testing competing theories. Finally, we revisit the spirit of ‘‘strong inference.’’ We present reductionist strategies appropriate for the organizational sciences, which extend beyond traditional approaches of ‘‘critical’’ comparisons between whole theories. We conclude with a discussion of strong inference in organizational science and how theory pruning can help in that pursuit.
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Academic Journal
Supply Chain

“Thinking Differently About Purchasing Portfolios: An Assessment of Sustainable Sourcing”

Purchasing portfolios are a well accepted part of the supply chain literature. Yet during a recent data collection effort we observed that a number of leaders in sustainable supply chain management were not organizing their purchasing portfolios in the manner suggested by Kraljic (1983). Specifically, we found evidence of organizations buying what would traditionally be leveraged commodities in a manner more suited to strategic suppliers. This manuscript describes the observed phenomena and then uses theory to try and explain our observations. The end result is a modified sustainable purchasing portfolio model.
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Academic Journal
Management

“Time after Time: A daily diary examination of leadership’s sequential impact on flow experiences”

We examine the nexus of leadership and flow through the lens of two inherently positive psychological leadership approaches. In so doing, we examine how leaders can craft conditions to make work more conducive to followers’ flow, and the beneficial effects this has on well-being and performance. Data were collected from 40 employees who completed an initial survey and subsequent daily surveys over two weeks (273 data points). Results from hierarchical linear modeling (level-1 days; level-2 persons) suggest that transformational leaders and leader-member exchange (LMX) relationships impact employees’ work characteristics, subsequently impacting daily flow. In turn, followers’ daily flow predicted daily psychological well-being and performance on subsequent days, further evidencing the downstream importance of flow-facilitative leader behaviors. Both transformational leadership and LMX were also found to predict psychological well-being through leaders’ impact on flow preconditions and flow itself in a full multi-stage mediation model.
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