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The Reason Interview With Nick Gillespie

Prison Doesn't Work the Way You Think

The Reason Interview With Nick Gillespie

The Reason Interview With Nick Gillespie

Politics, News

4.7750 Ratings

🗓️ 22 April 2026

⏱️ 68 minutes

🧾️ Download transcript

Summary

Economist Jennifer Doleac discusses why long sentences don’t reduce crime, how first-time defendants benefit from leniency, and why clearance rates are key to crime reduction.

Transcript

Click on a timestamp to play from that location

0:00.0

Jennifer Dolyak, thank you for talking to your reason.

0:03.0

Hi, thanks so much for having me.

0:06.0

Okay, so I know probably everyone ask you this question, but I'm going to start with a low-hanging fruit.

0:12.0

And it's also what your book begins with. I find it fundamentally interesting that you are an economist who primarily talks about crime and criminal justice. So just starting off there, I would be

0:24.3

interested to hear you talk a little more about the relationship between those two things,

0:29.8

because I think a lot of people would think they're unrelated and how you got them. Yeah. So,

0:36.6

yeah, economists study all kinds of things that are not GDP and money and banks.

0:41.1

And so that tends to be surprising to everyone. But, you know, we study their education economists,

0:46.5

health economists, and they're a crime economist. And so I think there are three big reasons that economics is useful for thinking about crime.

0:59.5

One is we think a lot about how people respond to incentives.

1:03.8

So that's really the theoretical lens that economists bring to the table.

1:07.4

And it turns out there are misaligned incentives throughout the criminal justice system.

1:11.1

And so that that lens and that thinking about, you know, if we want to change behavior,

1:16.0

we should be changing the costs and benefits that people are responding to. That is just a

1:20.4

different lens than other than lawyers bring or sociologists bring to the conversation.

1:26.9

The second is that economists are more obsessed

1:29.6

than everyone else with distinguishing correlation from causation. And so if we want to know

1:35.2

if a policy or program actually works and, you know, if we want to measure exactly what the

1:41.2

impact of some intervention is on behavior. Economists tend to be the

1:46.6

best people to talk to about that. And then the third is that because we're so good at measuring

1:52.0

those impacts, we can be really helpful to policymakers and practitioners who want to think about

1:57.9

how to allocate their scarce resources to meet some goal. And so we love

...

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