Subvención Escolar Preferencial

Chile's targeted school voucher, in plain language

What SEP is, in one sentence

The Subvención Escolar Preferencial (SEP), enacted in Chile in 2008 as Ley 20.248, pays subsidized schools an extra per-pupil voucher for every low-income ("priority") student they enroll, in exchange for accountability commitments and a ban on charging those students any fees.

The problem the policy was trying to solve

Before SEP, Chile's voucher was a flat per-pupil amount. Schools serving low-income neighborhoods received the same subsidy as schools in wealthier ones, even though the cost of educating disadvantaged students is higher and the families those schools served had less ability to top up via shared financing (financiamiento compartido). The result was a stratified system: better-resourced schools concentrated in higher-income areas, with weak competitive pressure to raise quality in the schools that low-income families could actually access.

SEP was designed to (a) channel more resources to the schools educating poor students, (b) sharpen the competitive incentive for those schools to attract those students, and (c) make participating schools accountable for using the additional funds to lift outcomes.

Who counts as a priority student

Two categories matter:

  • Alumnos Prioritarios — students whose household socioeconomic situation makes the educational process materially harder, identified through links to social-protection registries (Chile Solidario / Registro Social de Hogares), program enrollment (e.g. Fonasa A), or proxy means tests.
  • Alumnos Preferentes — added in later reforms; covers students from the next 80% most vulnerable households who do not meet the priority threshold. They receive a smaller top-up subsidy than prioritarios.

How a school joins, and what it owes in return

Participation is voluntary. To opt in, a school's sostenedor (operator) signs a Convenio de Igualdad de Oportunidades y Excelencia Educativa with the Ministry of Education. By signing, the school agrees to:

  • Charge no fees to priority students — Article 6 of the SEP law forbids any shared-financing charge to a priority student, and forbids conditioning admission or continued enrollment on payment.
  • Submit and execute a Plan de Mejoramiento Educativo (PME) — a four-year improvement plan with diagnostic, goals, and use-of-funds accounting.
  • Accept performance-based classification by the Ministry, used to set autonomy and oversight levels.
  • Report on how SEP resources are spent and produce annual rendiciones de cuentas to the Superintendencia de Educación.

The school classification system

The Ministry sorts SEP-participating schools into performance categories — historically Autónomo, Emergente, and En Recuperación (formerly Insuficiente) — based on student outcomes (SIMCE results) and other indicators. The classification governs how much spending discretion a school has and how intensively the Ministry supervises its PME. Today the classification is run by the Agencia de Calidad de la Educación and uses a four-category scheme.

How it has evolved

  • 2008: SEP enacted. Initial coverage: pre-K through 8th grade in subsidized schools.
  • 2011 — Ley 20.550: SEP extended through high school in stages.
  • 2015 — Ley de Inclusión Escolar (20.845): separately ended shared financing for all subsidized schools, banned for-profit operation in the subsidized sector, and replaced selective admission with a centralized lottery (the SAE). SEP now operates inside a system where co-pay is gone for everyone, not just priority students.
  • 2017+: Alumnos Preferentes added. Coverage and per-pupil amounts have been increased in subsequent budget cycles.
  • Coverage today: roughly 99% of municipal schools and ~2/3 of subsidized private schools have signed the convenio. Pre-K through 12th grade.

What we've learned about SEP from the data

My job-market paper studied the introduction of SEP as a natural experiment in voucher design and competition. Targeted Vouchers, Competition Among Schools and the Academic Achievement of Poor Students (conditionally accepted at Econometrica) develops a structural model of the Chilean primary-education market and uses it to ask: when you change a flat voucher into a targeted one, how do schools respond? The estimates indicate that under the flat regime schools in poor neighborhoods exercised meaningful market power and supplied quality below the competitive benchmark; SEP's targeted top-up reduced that market power and increased marginal revenue, generating a supply-side improvement in observed school quality and a measurable rise in the academic achievement of poor students.

Related research lines on the same data and policy environment: