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Karl Schuhmacher

Assistant Professor of Accounting Emory University, Goizueta Business School

  • Atlanta GA
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Emory University, Goizueta Business School

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Biography

Karl Schuhmacher completed his PhD in Management at the University of Lausanne, Switzerland, in 2014. Prior to joining the faculty at Emory, he was a Visiting Research Scholar at the University of Pennsylvania. His primary research focus is related to management accounting, cost systems, performance measurement, and incentive contracting. His work has been published in the Journal of Accounting Research, The Accounting Review, Management Science, Contemporary Accounting Research, and Accounting and Business Research.

Education

University of Lausanne

PhD

Management

2014

University of Mannheim

Diplom-Kaufmann

Business Administration

2009

Areas of Expertise

Management Accounting
Incentive contracting
Performance Measurement
Costing

Publications

Un-Nudging Pay Gaps: The Role of Pay Raise Budget Framing

The Accounting Review

Gunnell, Schuhmacher, and Towry

2025-06-26

Pay gaps, like gender or racial gaps, violate the widely held belief that employees should receive equal pay for equal work. This study examines whether a common control choice – framing pay raise budgets in percentages – contributes to perpetuating pay gaps. We predict that when the pay raise budget is framed as a percentage (the percentage frame), it inadvertently nudges managers to anchor individual raises on that budget percentage, thereby impounding prior salaries, and thus, existing inequities, into pay raises. We further predict that framing the pay raise budget as an absolute amount (the dollar frame) can un-nudge this behavior. As expected, we find in two experiments that the dollar frame perpetuates pay gaps less than the percentage frame, and that this difference is robust to varying levels of ambiguity about the source of salary differences. Our study examines a simple, cost-effective way to limit the perpetuation of pay gaps.

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Use and Design of Peer Evaluations for Bonus Allocations

Journal of Accounting Research

Grieder and Schuhmacher

2025-06-25

We conduct an experiment to investigate the use of peer evaluations for compensation purposes. Although organizations often rely on peer evaluations for incentive compensation, it is not well understood how peer feedback should be used and designed to ensure non-distorted evaluations and motivate effort provision. We study peer evaluations in form of bonus allocation proposals, thereby enabling a quantifiable test of our hypothesis. We distinguish between discretionary use (i.e., allocation by the manager) and formulaic use (i.e., allocation by the team via the average) of self-including and self-excluding proposals. We find that, relative to self-including proposals, self-excluding proposals are less distorted, irrespective of use, but lead to more effort provision only under formulaic use. Under discretionary use, the benefits of self-excluding proposals are offset, as managerial biases enter bonus allocations. In sum, our findings illustrate benefits of delegating bonus allocations to teams through formulaic use of self-excluding peer evaluations and extend the understanding of how organizations can effectively incorporate peer evaluations into incentive compensation.

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Reciprocity over time: Do employees respond more to kind or unkind controls?

Contemporary Accounting Research

Samet, Schuhmacher, Towry, and Zureich

2025-04-24

Reciprocity plays a critical role in the way employees respond to managerial control decisions. The current consensus is that employees punish managers for implementing unkind controls (negative reciprocity) more than they reward managers for implementing kind controls (positive reciprocity). We challenge this consensus. Prior research focuses on settings that emphasize employees’ immediate reciprocal responses. However, in the workplace, employees often respond over long periods of time to sticky control decisions (e.g., budgets, pay, decision-rights). Focusing on these long-term settings, we predict and find that, while negative reciprocity is initially stronger than positive reciprocity, it also fades more over time than positive reciprocity. This differential fading is so pronounced in our setting that positive reciprocity is stronger overall in the long run. Thus, in long-term settings, positive responses to kind controls may play a more important role than negative responses to unkind controls. Our results inform managerial decisions about the use of kind versus unkind controls and suggest potential long-term benefits of pay disparity and other policies that treat employees differentially.

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Working Papers/Projects

Reward Allocations in Teams: When Decision Autonomy Helps and When it Hurts

Schuhmacher and Wiernsperger
As organizations adopt flatter structures, teams increasingly decide how to allocate jointly earned rewards—such as bonuses, profits, or royalties—often with no or minimal hierarchical oversight. Prior research shows that, given certain mechanisms, team members can effectively use subjective, non-contractible peer information to allocate rewards, thereby curbing free riding and motivating effort contributions. However, it is unclear whether teams should be granted decision autonomy over the mechanisms that coordinate their use of peer information. We conduct an experiment that gives teams the choice between a mechanism that is ineffective in motivating effort – even splits (i.e., no use of peer information) – and one of two mechanisms that can motivate effort via the use of peer information: bargaining and impartial sharing. Both of these peer-based mechanisms increase effort contributions – and team profits – by about 50% relative to even splits. Yet, when granted a choice, most teams opt for even splits due to naïve expectations and preferences for procedural clarity. Further, the results suggest that teams prefer bargaining over impartial sharing, since bargaining preserves individual agency and control compared to impartial sharing. Our study reveals a key tension when delegating decision autonomy to teams: while granting autonomy over the subjective use of peer information is beneficial given specific allocation mechanisms, granting autonomy over the very choice of allocation mechanism may backfire.

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Aggregation Fallacy: An Explanation for Systematic Forecast Bias

Schuhmacher, Zureich, and Burkert
In forecasting and capital budgeting, managers tend to underestimate costs. Prior research typically attributes this forecast bias to misaligned incentives or imperfect information. We introduce a novel explanation: aggregation fallacy. The key idea is that individuals provide forecasts of aggregate outcomes (e.g., total costs) by erroneously adding component forecasts (e.g., costs in divisions A and B). While such linear aggregation is appropriate for deterministic information (i.e., costs that have been incurred), it can result in systematic bias with probabilistic information (i.e., future costs) due to right skew in cost distributions. In support of our hypotheses, results of several experiments show that aggregation fallacy leads to systematic underestimation of costs. Additional analyses demonstrate that aggregation fallacy is not eliminated by learning and also holds with financial incentives for forecast accuracy. Overall, our study shows that, even with aligned incentives and perfect information, systematic cost underestimation may arise due to aggregation fallacy.

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Research Spotlight

5 min

The gender wage gap shows no sign of improving any time soon. If anything, evidence suggests it’s growing in the United States. Recent stats show that for every dollar earned by men, women in the same job earn just 92 cents—that equates to one month of salary less in a given year. That gap widens even more for Black and other minority women. In the meantime, men’s wages are increasing—just shy of 4% in the last two years—while women’s income hasn’t budged. Organizations should take note, warn Goizueta’s Karl Schuhmacher and Kristy Towry. Wage inequity is an issue that undermines the concept of equal pay for equal work. It’s also bad for business. Employers that don’t pay or play fair with their workers stand to lose talent to competitors who offer better conditions, not to mention customers or investors who care about fairness. And that’s not all. In meritocracies, employees are incentivized to engage more, care more, and create more value because they understand their compensation is pegged to the effort they make and outcomes they achieve—to merit itself, regardless of demographics. The gender wage gap in the United States is inherently unmeritocratic. And fixing it has proved elusive—at least until now. In their new study, co-authored by Goizueta PhD graduate, Hayden T. Gunnell 25PhD of the University of Texas in Austin, Schuhmacher and Towry have come up with a novel approach to addressing the gender wage gap; one as practicable as it is simple. And it’s all down to percentages. Pay Gaps Baked In Most employers review employee salaries on an annual basis—usually yoking them to performance reviews. Overwhelmingly, managers will frame raises in terms of percentages: those doing well might be awarded a five or even 10 percent pay raise, for example. The problem with this, argues Schuhmacher, is that percentage-based raises are tied to initial salaries. And if that baseline is biased from the start, handing out similar percentage raises will only compound the problem, and perpetuate inequities—whatever the intention. If women start out getting paid less than men for the same job, and your raise budgets are framed in percentages, you end up baking those gaps in more, even if you don’t mean to. Karl Schuhmacher, Assistant Professor of Accounting “That five percent raise you’re giving everyone for the same job well done sounds fair and effective,” says Schuhmacher. “But it’s only actually fair if the initial salary is equitable—if Jane has been making the same as John from the off. And if she hasn’t—if John is being overcompensated relative to Jane—then all you’re doing is perpetuating that gap.” Awarding similar percentage raises doesn’t recognize or acknowledge preexisting, unfair discrepancies in initial salaries. A better approach, he and Towry argue, is to reframe pay raise budgets in terms of absolute dollars. “Budgeting for raises in absolute terms—a $150,000 pool for all raises in a group, say, versus a budgeted pool of 5% per person—automatically unshackles raises from preexisting unfairness in people’s pay,” says Schuhmacher. “You reduce the risk of perpetuating pay gaps by giving managers a way of assessing and evaluating work and assigning a dollar value that recognizes that work. It’s a fairer, more meritocratic approach.” It also has the effect of “nudging the cognitive processes” that employers use. Percentages are a ubiquitous way of determining raise budgets because they feel fair and easy to use, says Towry. A five percent raise for employees sounds reasonable, equitable, and doesn’t tax managers cognitively, making it simple to implement again and again—a norm or procedural “anchor” within most organizations. Substituting dollars for percentages, however, should provide enough of a nudge that managers focus more on the actual value their employees contribute to the organization. And it shouldn’t require a major rehaul of the system: a win-win for employees and organizations looking to retain talent, says Towry, where the gains significantly outweigh the effort involved. Thinking in Dollars, Not Percentages To put this idea to the test, Towry, Schuhmacher, and Gunnell enlisted Goizueta MBA students to participate in a lab experiment, taking on the role of manager at a hypothetical bank. Participants were given the salary details of four high-performing employees—two male, two female—with gender discrepancies baked into initial pay. Importantly, in this setting, male and female employees do the same job and perform equally well. Participants were divided into two camps: the first instructed to hand out percentage raises, the second dollar raises. All participants had to allocate the same pay raise budget of $30,800—5% of total salaries—among the two male and two female employees, the sole difference being that one group received a percentage budget, while the other group received a dollar budget. The results support the theory, says Towry. When participants use percentages, the individual pay raises cluster around the 5% mark, meaning that existing pay gaps are perpetuated. Kristy Towry, Professor Emerita of Accounting “Our fictional male employees, Jason and Gary, walk away with higher overall raises than Martha and Sarah, because they are already earning more than the women,” says Towry. “And this happens even though our participants know about initial pay discrepancies, and women and men perform equally well in the same job.” When participants use absolute dollars, however, this clustering effect around the 5% mark disappears. Participants give pay raises that better reflect employees’ value contributions to the organization. As such, pay raises are less dependent on initial pay gaps. In some cases, participants even award more cash to the women than the men to counteract the initial gap. “Martha ends up with a higher raise than Gary, but their initial salaries are $116,000 and $192,000, respectively,” says Towry. “So, what we’re seeing here is that our managers are asked to take out the percentage and think in dollars, they effectively redress the balance. The preexisting pay gap is reduced in recognition of equal merit.” Reproducing this in real-word settings shouldn’t be difficult for organizations. And at a time when gaps are becoming more entrenched and progress on equitable pay is stagnating in the United States, there is a clear imperative ahead of employers interested in sending clear signals to existing and future male and female talent, says Schuhmacher. Pay that reflects performance fairly is inherently meritocratic and we know that being a meritocracy is attractive to employees—to your existing workforce and to the workforce that you want to attract. Karl Schuhmacher “When people know they’re being evaluated based on their results, regardless of their gender or background, they are more motivated to work hard,” says Schumacher. “The beauty of this solution is that it supports a more meritocratic way of rewarding talent. It’s also easy to implement—easier than interventions like bias training or organizational audits that consume time and resources. Using dollars instead of percentages is something that organizations can do that translates into real impact. And it’s something that they can do in a day. Our advice: start tomorrow!”

Karl SchuhmacherKristy Towry

1 min

Management accounting literature devotes considerable attention to the “controllability principle.” This principle stipulates that managers should only be held responsible for the results they directly control through their actions. The literature argues that the use of less controllable performance measures reduces managerial motivation and causes stress. However, Karl Schuhmacher, assistant professor of accounting; Michael Burkert (U Fribourg); Franz Fischer (independent researcher); and Florian Hoos (HC Paris) argue that there can also be positive effects associated with a lack of controllability. The researchers conducted a survey with 432 business managers, asking questions related to the measures used for their performance evaluations. They concluded that less controllable measures do create stress but also induce proactive work behaviors. In fact, the lack of controllability stimulates managers to cope with stress by interpreting their roles more flexibly and cooperating with peers to seek solutions for organizational problems they cannot control individually. The authors suggest further research to determine how organizations modulate between the positive and negative effects of disregarding the controllability principle. Source:

Karl Schuhmacher

In the News

Using percentages to manage raises may perpetuate gender pay gaps

yahoo!finance  online

Budgets for pay raises are typically framed as percentages of existing salaries, but when the existing salaries are already unequal, ...

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Why shrinking the pay gap is a question of dollars, not percentages.

emorybusiness.com  online

The gender wage gap shows no sign of improving any time soon. If anything, evidence suggests it’s growing in the United States. Recent stats show that for every dollar earned by men, women in the same job earn just 92 cents—that equates to one month of salary less in a given year. ...

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How modern managerial accounting practices help companies grow

emorybusiness.com  

Measuring performance for strategy execution. Managerial accounting competencies, such as performing high-level analyses on business strategy, can expose external threats to strategy execution. Once a company establishes a strategy or objective, management accountants can design systems so that actions lead towards achieving the goal of that strategy or objective, such as through performance management. “We want to make sure the employees work in the best interest of the organization and that we’re all pulling on one string,” Karl Schuhmacher, assistant professor of accounting at Goizueta, said.
“The key with measuring different aspects of performance in an organization is determining what is the underlying thing that we care about and then we can constantly test how well our metric measures that,” Towry said. “We can think of the metric as a shadow or reflection of the underlying dimension of performance we are interested in.”

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