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Kellogg faculty members Craig Garthwaite and Lauren Rivera were recently recognized on “The World’s Best 40 Under 40 Business School Professors” list by Poets & Quants. Garthwaite is an assistant professor of strategy at Kellogg, while Rivera is an associate professor of management and operations.

To make it on the list, Poets & Quants writes that the professors need to possess an excellence in research, combined with world-class teaching prowess.

Garthwaite, who teaches Business Strategy, joined Kellogg’s faculty in 2009. His research examines the effects of government policies and social phenomena. He has a specific focus on the health sector.

Rivera teaches Leadership and Organizations at Kellogg, where she’s taught since 2009. Her research is centered around how people evaluate merit and social status. She is the author of the soon-to-be-released “Pedigree: How Elite Students Get Elite Jobs.” The book will be available on May 4.

Poets & Quants posted Q&As with Garthwaite and Rivera, as well with students about their experiences with each professor. Take a look at some of the answers for each professor below.

Craig Garthwaite, Assistant Professor of Strategy

What professional achievement are you most proud of?

Most of my recent work has focused on the changes that we can expect from the Affordable Care Act (ACA), a.k.a. Obamacare. In 2014, I co-authored a study examining the labor market effects of the ACA. Using estimates from an earlier Medicaid expansion in Tennessee, we found that the ACA could result in nearly 1 million people leaving the labor force. Our estimates were prominently cited by the Congressional Budget Office (CBO) when they updated (and dramatically increased) their estimate of the expected job losses from the ACA.

What do you enjoy most about teaching?

The core strategy course at Kellogg is the first interaction that some of our students have with microeconomics. Watching these students develop an understanding of how economic intuition can help them to make effective decisions, both for the firms in which they will be employer and for themselves, is a particularly rewarding feature of teaching at Kellogg.

What students said:

Professor Garthwaite reinforced my belief that business school was the right choice for me. Sure, the teachings and concepts were incredibly important, but the real takeaway was learning how to be a strategic thinker. He demands and expects a lot from his students and because he thinks at such a high level, you have to constantly stay on your toes just to keep up with him. – Sheila Shah ’15

The most powerful aspect of Professor Garthwaite’s teaching style is his approach to questioning students during case discussion. He brings passion and intensity to every class discussion. His approach is extremely genuine. He’s pushing you to work harder and think about business decisions from every possible angle and stakeholder perspective, something that not many business leaders often do. You come to class prepared because you don’t want to disappoint him. That’s the type of impact he has on the students at Kellogg and it carries on to their other classes, extracurriculars and well after graduation. – Rhett Braunschweig ’15

More on Garthwaite from Poets & Quants

Lauren Rivera, Associate Professor of Management & Operations

What professional achievement are you most proud of?

My recent book, Pedigree: How Elite Students Get Elite Jobs, which is the culmination of many years spent researching the hiring practices of top-tier investment banks, management consulting firms, and law firms.

What do you enjoy most about teaching? 

The instant gratification I get from seeing students’ faces light up as they begin to look at the social world in new ways.

What students said:

Professor Rivera’s Leadership in Organizations class was the first class I took at Kellogg, and I remember walking out on the first day thinking, “This is why I came to business school.” Professor Rivera is engaging, approachable and warm, and her teaching style makes all of the students feel extraordinarily comfortable participating in candid discussions. She’s also incredibly relatable, bringing real-world consulting experience and an interesting research background in how social groups impact workplaces biases. – Jonathan Feldman ’15

Professor Rivera taught my Leadership in Organization’s course as part of Kellogg’s MBA core program, and I quickly understood why it was a required course for all entering students. Professor Rivera made the subject matter come alive by throwing us into hands on activities where we experienced important leadership principles before even realizing we would be covering the topic. – Nancy Choi ’15

More on Rivera from Poets & Quants