Your Straight A Report Card Could Cost You Your Future Paycheck

Your Straight A Report Card might be the most expensive piece of paper you own. A new study from the National Bureau of Economic Research finds that when teachers hand out easy grades, their students do not just learn less — they skip class more, score worse on later tests, and earn less money years down the road. The researchers call it grade inflation, and they put a number on the damage: a teacher whose grading runs one standard deviation above average shrinks the present discounted value of a classroom's lifetime earnings by about two hundred fourteen thousand dollars.

The paper, titled "Easy A's, Less Pay: The Long-Term Effects of Grade Inflation," tracked administrative high school records from Los Angeles and Maryland and linked them to postsecondary and earnings data. Four researchers — Jeffrey Denning, Rachel Nesbit, Nolan Pope, and Merrill Warnick — split grading leniency into two kinds: nudging average grades upward, and being generous with passing grades at the bottom. The two behave very differently, and that distinction is where the story gets interesting.

Why easy grades make students try less

The mechanism is disarmingly simple. When an A is easy to get, the payoff for studying evaporates. "Average grade inflation hurts," labor economist Nolan Pope told Fortune. "They are less likely to learn if it is very easy to get an A. They spend less time and effort." Students assigned to lenient graders were more likely to skip class, and they scored lower on future standardized tests — the kind of skill gap that does not disappear when the transcript looks good.

The long-run numbers are what make the paper land. Each letter grade quietly nudged upward — a B lifted to a B-plus, for instance — costs a student roughly one hundred fifty dollars a year in future earnings. That sounds small until it compounds over a career and across a whole classroom. Grade inflation is distinct from teaching quality, the authors note: teachers who inflate grades tend to score moderately lower on measures of cognitive value-added to their students.

This is the flip side of a story GenZ NewZ covered this month, when researchers found that paying college students to sleep more raised their grades — a reminder that grades respond to real inputs like rest and effort. It also echoes findings that the teenage brain is still highly sensitive to habits formed now, as in the teen brain study on overlooked habits. A grade that reflects nothing learned is a receipt for nothing bought.

The twist: passing grades are a different story

Here is the counterpoint the researchers insist on. The second kind of leniency — being more generous with passing grades at the bottom of the scale — does not carry the same curse. Students of teachers who pass struggling kids more readily are less likely to be held back a year, more likely to finish high school, and more likely to start at a two-year college. The long-run earnings effects are limited, but the near-term effects are positive.

That nuance matters for the policy debate, because the politics are moving fast. According to BANKBIT, summarizing Fortune's reporting, the findings arrive as President Donald Trump pushes a crackdown on grade inflation on college campuses, tying federal funding to whether universities hold the line on grading. If Washington acts with a blunt instrument, the study suggests, it could accidentally discourage the leniency that actually helps struggling students while missing the average-grade inflation that harms them.

For students themselves, the takeaway is practical rather than political. A transcript full of easy A's can be a liability if the knowledge behind it is thin: employers and colleges eventually test what you know, not what your teacher wrote. And as recent surveys of cash-strapped college students keep showing, the financial margin of error in your twenties is already tiny — there is no room to give away earnings to a grading curve. A Straight A Report Card that reflects real learning is worth more than one that reflects leniency, and the data shows the difference follows students for decades.

The bottom line is one the researchers put plainly: effort follows incentives. When grades are hard to earn, students study, learn, and carry those skills into paychecks. When the A comes free, everyone loses — including, eventually, the student who framed the Straight A Report Card on the wall.