This essay provides a critical review of the field of immigration policy studies from the perspective of measurement and modeling. It serves to contextualize and broaden the views presented in the special issue. As such, we combine insights from American and comparative politics, pinpoint key limitations and challenges in the field, and identify areas of strength within each subfield which could inform theory and measurement development for the other. Ultimately, the concerns about conceptualization, definition, and measurement that we identify and discuss herein, do not apply only to immigration policy studies but to policy studies writ large.

OBJECTIVES: We conducted a policy scan of state and local laws and policies across the United States related to social determinants of health among immigrants. METHODS: We collected all state and municipal laws and policies in 10 domains that had potential to affect immigrant health from all 50 U.S. states and the 30 most populous U.S. metropolitan statistical areas. We coded these laws and policies and created an index of restrictiveness and supportiveness of immigrants. RESULTS: We identified 539 state and 322 municipal laws and policies. The most common restrictive state laws and policies were in the domains of identification requirements and drivers license access. The most common supportive state laws and policies were in the domains of health services and higher education access. The most common restrictive municipal laws and policies were in the domains of identification requirements and immigration policy enforcement. The most common supportive municipal laws and policies were in the domains of immigration policy enforcement and health services access. CONCLUSIONS: Most states had index scores reflecting policy environments that were primarily restrictive of immigrants, indicating potential negative impacts on social determinants of health. Further research examining the impact of these on health behaviors is warranted.