The Impact of Media Censorship: 1984 or Brave New World?

The GFW's robustness depends principally on suppressed citizen demand for uncensored information, not solely on access barriers. Calibration shows censorship remains stable even if the unencouraged access rate were substantially expanded, because low demand and moderate social transmission prevent information from reaching population-wide tipping points. However, censorship is fragile to demand stimulation: scaling the encouragement intervention to all students would, per the model, inform the entire student population.

§V policy ip-blockingkeyword-filteringthrottling cn

When given a free 18-month subscription to a premium VPN (retail value US$25/month), only 55% of treated Chinese university students activated the tool, and less than 5% of active users regularly browsed blocked foreign news websites. By contrast, 86% activated a placebo free Youku (Netflix-equivalent) account within a week, isolating low demand—not friction—as the barrier.

§III.A, Table 2 evaluation ip-blockingkeyword-filtering cn

Acquisition of politically sensitive information produced broad, durable attitude change: access-plus-encouragement moved the median student from the 47th to the 56th percentile across all measured outcome dimensions. Students became more pessimistic about Chinese economic growth (elicited incentive-compatibly), more skeptical of government performance, more likely to plan exit via foreign graduate school, and more likely to report having withdrawn stock-market investments.

§IV, §III.C (Figure 1) evaluation ip-blockingkeyword-filtering cn

Peer-to-peer knowledge spillovers were statistically significant but small: a student who actively browsed foreign news and learned of a sensitive event made her dormitory roommate 12.7 percentage points more likely to answer a quiz on that event correctly. Model calibration showed this transmission rate is insufficient to propagate knowledge to the broader student population given the low share of initially informed students.

§IV.B evaluation keyword-filteringip-blocking cn

Modest financial incentives (US$2.50 per quiz requiring a visit to the NYT Chinese edition) produced a persistent increase in foreign-news browsing: after the 4-month encouragement ended, Group-AE students spent 3.4 min/week more on top foreign news sites than access-only peers (6.7 min/week among active users). By the experiment's end, 23% of newly exposed students paid US$4.50/month to continue uncensored access out of pocket.

§III.B–C, §II.B evaluation ip-blocking cn