The CPS Citizenship Question and Survey Refusals: Causal and Semi-Causal Evidence Featuring a Two-Stage Regression Discontinuity Design
Robert Bernhardt () and
Phanindra V. Wunnava ()
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Robert Bernhardt: Federal Reserve Bank of Chicago
Phanindra V. Wunnava: Middlebury College
No 13350, IZA Discussion Papers from Institute of Labor Economics (IZA)
The unsuccessful attempt to add a citizenship question to the Census has drawn attention to citizenship questions on other surveys. Simultaneously, researchers have noted a recent increase in Current Population Survey non-response. We combine these topics, studying the effect of the CPS citizenship question on refusals. We use the question's sudden introduction in 1994 as a natural experiment and obtain causal estimates via a regression discontinuity design (RDD). In January 1994, we find an immediate and sustained 20-50% jump in refusals. However, this cannot be attributed to the question alone, as numerous other survey characteristics were revised. We employ a two-stage RDD to relate state-specific refusal discontinuities to state characteristics. Discontinuity size is positively related to non-citizen and Hispanic populations, and a proxy for citizenship question item non-response. An 8% increase in refusals is potentially attributable to the question. Moreover, at the threshold, there is weak evidence of a discrete decrease in states' reported Hispanic populations. When non-citizenship is observable, state non-citizen population is positively related with refusals. These results imply the question makes non-citizens and Hispanics reluctant to take the survey. We recommend there be a trial to precisely estimate the question's effects, and decide if it merits continuation.
Keywords: current population survey; non-response; survey refusal; citizenship status; immigration; Regression Discontinuity; panel data (search for similar items in EconPapers)
JEL-codes: C23 C83 J15 (search for similar items in EconPapers)
Pages: 39 pages
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