Private Vacancy Filtering

In Simple Words

Instead of posting a help-wanted sign in a front store window where any passerby can hand over a resume, a business owner gives the job listing exclusively to a private recruiter behind closed doors who screens candidates before anyone gets the store address.

Research question

Publicly listed job openings frequently attract high volumes of unqualified applicants, overloading hiring managers with resume screening costs and delaying recruitment.

Participants

N = 1,825 permanent contract vacancies posted across 7,438 small and medium-sized French firms.

Study Design

Inverse propensity weighted (IPW) regression within a randomized controlled trial analyzing vacancy visibility settings and applicant volumes.

Results

Treatment increased the proportion of vacancies designated as private (hidden from public internet access) by 57% (0.030 increase over 0.053 control mean, p < 0.01), which mechanically reduced direct jobseeker applications by 39% (-2.67 applications, p < 0.01).

Takeaway

Restrict public access to online job postings by making listings anonymous or private, routing all candidate submissions through designated screening intermediaries.

Read alongside the research

Plain-English glossary

Original explanations, informed by the references below. Examples are illustrations, not data from the studies above. The research text stays unchanged.

Randomized controlled trial

A study that uses chance, like drawing lots, to decide who receives each option being compared. Researchers compare the groups’ outcomes to estimate the effect of those options.

ExampleA lottery assigns volunteers to a training programme or a comparison group. Researchers then compare their outcomes.

GET-IT glossary · Randomized study ↗Read more about randomized controlled trial →

Related findings

• Dual-Friction Market Tightness Invariance →Labour & employment

  Imagine a restaurant facing two different bottlenecks: in a busy town, management struggles because few people apply for jobs, whereas in a quiet town, management struggles because hundreds apply and reviewing every resume takes too long. Screening assistance helps management in both situations by solving opposite sides of the same operational delay.

• Multi-Contextual Network Spillover Mismatch →Labour & employment

  Imagine a community garden club formed so members can trade excess vegetables during dry seasons. If a local company asks club members to hire factory workers, members will use job offers as favors to support struggling club friends rather than finding people with actual factory skills.

• Prerequisite Criteria Pre-Selection →Labour & employment

  It is like a customized order form at a restaurant. Instead of just asking for a "sandwich," the customer specifies 1 to 5 non-negotiable dietary rules with the chef, guaranteeing that kitchen staff only send out plates that meet those exact criteria.

• Ability-Dependent Peer Screening →Labour & employment

  Imagine trying to pick the best chess player out of a crowd. Only a master chess player has the expertise to accurately assess who among their acquaintances truly plays at an elite level, whereas a beginner cannot distinguish between a decent amateur and a grandmaster.