Evidence Ledger · Protocol candidate · reviewed 2026-08-29

Voice AI in Firms: A Natural Field Experiment on Automated Job Interviews

The reviewed source can support a conservative practical protocol.

Brali decision: Protocol candidate. This page summarizes a reviewed evidence boundary; it does not reproduce the source and it does not turn one paper into a universal prescription.

What the source supports

A defensible way to divide some repetitive high-volume workflows is to automate structured information collection while keeping consequential evaluation with a human. In this field experiment, that division improved several downstream hiring outcomes without a measured decline in worker productivity. Transcript evidence is consistent with greater standardization and comparability as a mechanism, but does not prove that mechanism independently. Brali should treat this as a task-allocation pattern to test, not as evidence that AI should make final hiring or other high-stakes decisions.

What it does not establish

Important limitations

Source context

Voice AI in Firms: A Natural Field Experiment on Automated Job Interviews

  • Source type: primary-study
  • Design: Preregistered natural field experiment at PSG Global Solutions. Of 70,884 applications received during the experiment, 67,056 eligible applications were randomized to an AI interviewer, a human interviewer, or a choice condition. The direct causal comparison changed who conducted the information-collection interview while human recruiters evaluated applications and made every final hiring decision.
  • Population: Applicants for 48 entry-level customer-service job postings across 41 client accounts, processed at 26 sites in 19 cities in the Philippines. Most applicants were aged 20-30 and had prior customer-service experience.
  • Exposure / intervention: A voice AI agent conducted a structured but adaptive initial interview instead of a human recruiter. Human recruiters later evaluated interview information and standardized test results and retained final hiring authority.
  • Outcomes: Job offer rate; Job starts; Worker retention; Measured worker productivity; Interview structure and consistency; Applicant experience; Technical and refusal failures

Citation: Jabarian B, Henkel L. Voice AI in Firms: A Natural Field Experiment on Automated Job Interviews. SSRN Working Paper, posted 2025; revised 2026.

DOI: 10.2139/ssrn.5395709

What this changes in Brali

Historical review target

automate intake keep judgment

This identifier was used as an evidence-review target but was never published as a canonical Brali protocol. It is retained as provenance and deliberately does not link to a public route.

Editorial note: Protocol direction: decompose a workflow into information collection and consequential evaluation. Consider AI for the repetitive collection stage only when inputs can be structured, auditable, and failure-handled; preserve an explicit human judgment stage, expose source material and uncertainty, and measure both process variance and downstream outcomes. Do not infer that the human stage is safe merely because it exists.

Use the boundary, not just the headline

When an AI agent or a person retrieves this decision, preserve both the supported claim and the unsupported or overstated claims. Dropping the boundary would turn a reviewed source into a stronger claim than Brali actually maintains.

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