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Healthcare · Randomized field experiment · 2026

When pay isn't the strongest opening message

In this experiment, messages emphasizing pay reduced overall engagement by 7.7% relative to baseline, while social-support and benefits messaging outperformed pay-led messages.

Methodology and limitations

Population: 110,000 European nurses; cross-border recruitment to Denmark

Do not overgeneralize: This does not establish what wins for U.S. nursing campaigns or any other healthcare occupation.

Test worth running: Compare a verified pay-led headline with a verified support/benefits headline for the same vacancy.

Read the source: Harvard Kennedy School
Healthcare · Field experiment · 2024

When the language of the invitation changes response

Origin-language recruitment ads generated more initiated applications than German-language comparators for the studied audiences.

Methodology and limitations

Population: Nursing recruitment social advertising, Berlin; Arabic and Ukrainian speakers

Do not overgeneralize: A context-specific result, not a general employment targeting recommendation; follow employment advertising policies.

Test worth running: Assess whether plain-language job messaging improves understanding and application completion.

Read the source: Human Resources for Health
Job advertising · Randomized field experiment · 2025

More applications doesn't always mean better applicants

Career-advancement messaging attracted some additional well-qualified applicants; flexibility attracted more entry-level applications with limited evidence of improved fit.

Methodology and limitations

Population: Technology employer; flexibility and career-opportunity advertising

Do not overgeneralize: Non-healthcare setting; use it to frame experiments, not to claim healthcare-specific outcomes.

Test worth running: Test verified career-development benefits against flexibility messaging, measuring qualified applications.

Read the source: CEPR
Labor market · Difference-in-differences · 2025

What salary transparency changes—and what it doesn't prove

The study associated transparency requirements with more salary disclosure and higher wages, without establishing a universal applicant-quality improvement.

Methodology and limitations

Population: U.S. state salary-disclosure policies

Do not overgeneralize: It does not test recruitment-ad creative variants or reveal which headline creates more qualified applicants.

Test worth running: Keep lawful pay details consistent, then test pay prominence versus another concrete job benefit.

Read the source: NBER

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