Help us record how gas stations display their fuel prices.
You'll be given a list of gas stations. For each one you'll open Google Street View, look at the station's price sign, and answer a short set of questions about what the sign shows. It takes about 1–2 minutes per station.
Before you start there's a short instruction walkthrough and a 4-question check. Your progress is saved automatically — you can stop and come back using the same link.
This task is part of an academic research study on how retail gas stations display their fuel prices. You will review publicly available Google Street View imagery and record what is visible on gas-station price signs. Please read this page before agreeing to take part.
For each assigned station you'll open Street View, look at the price sign, answer a few short questions about what it shows, and upload a screenshot. A typical station takes 1–2 minutes.
Your answers, the screenshots you upload, the time spent on each station, and the name or participant ID you enter. We do not collect anything from your device beyond what you submit in this tool, and we do not collect special categories of personal data.
Responses are used for research and quality control and are reported only in aggregate. Data is stored on a secure server accessible to the research team and retained for as long as needed for the research and any period required by the study's IRB approval, after which identifiers are removed or the data is deleted per the study protocol.
Risks are minimal — no greater than ordinary computer use. There is no direct benefit to you beyond payment for qualifying work (described below); the study helps researchers understand fuel-price advertising.
Taking part is entirely voluntary. You may stop at any time and skip any station without penalty. To withdraw, simply stop and contact the team at the address below.
$1.00 base pay + $0.25 for every station you submit. Your live earnings show at the top of the labeling screen. You can stop whenever you like — after 1 station or after 100 — and you'll get your completion code and full pay for what you did.
A few "gold" stations with known correct answers are mixed invisibly into your batch as quality checks. You won't be told which stations are checks or where they are — only that they are there — so please treat every station seriously. You're allowed one bad check in the middle; getting the very first one wrong or two in a row ends the session (you're still paid for the stations you completed).
This study is conducted by Andreas Kraft (Andreas.Kraft@chicagobooth.edu) and Avner Strulov-Shlain (Avner.Strulov-Shlain@chicagobooth.edu) at the University of Chicago Booth School of Business. For questions about the study, contact either researcher. For questions about your rights as a research participant, contact the University of Chicago Social & Behavioral Sciences Institutional Review Board (SBS IRB) and reference protocol IRB26-0979.
Just confirming the instructions are clear. Answer all four to begin. You can retry if needed.
When a station shows two prices for regular gas (e.g., a cash price and a credit price), how would you rather record them?
Type the cash price and the credit price; we compute the difference. No math.
Recommended for most raters.
Type only the discount in dollars per gallon (e.g., 0.10). Faster, but you do the subtraction.
Pick this if you're comfortable doing quick mental arithmetic.
You can switch on each station with one click — this just sets the default.
You'll walk through one real station just like the real batch, but this one doesn't count. Look at the sign, answer the three quick questions below, then we'll show you what the correct answers are before you start earning.
Your work is saved.
Bookmark this page — return with the same link whenever you like. Every additional station adds $0.25 to your total, and your completion code stays the same.
Tell us what was confusing or where you got stuck. 30+ characters earns a 50¢ bonus.
A quality check didn't match, so this session has been closed early — but you'll still be paid for every station you completed. Thank you.
Tell us what was confusing or where you got stuck. 30+ characters earns a 50¢ bonus.
If you believe this was a mistake, contact the study team at Andreas.Kraft@chicagobooth.edu or Avner.Strulov-Shlain@chicagobooth.edu.