They chose administrative assistant jobs since those positions generally meet the public, so hiring managers would want to ensure that the people like the person in front.
While the qualifications were the same, "Kristen Miller" received more responses than "Rebecca Cohen" and "Lia Avraham." Here were the only differences in their resumes:
The report says:
Across specifications, we see that both the Jewish and the Israeli Treatments experienced a decrease in positive response rates relative to the control. These differences are statistically significant across all three models. ....This means that, to receive the same number of positive responses as the Western European Treatment, the Jewish Treatment must send 24.2% more inquiries, and the Israeli Treatment must send 39.0% more inquiries.
Their city by city analysis had samples sizes too small to be statistically significant - except for one city, Seattle:
The only market in which the difference in response rates is statistically significant at the city level is in Seattle, where the Israeli Treatment is 16.3 percentage points less likely to receive a positive response relative to the control (23.1% vs 6.8%),
This mirrors a survey by Resumebuilders in 2022 that I did further analysis on.