National Academies of Sciences%2c Engineering%2c and Medicine

Using Multiple Data Sources and State-of-the-Art Estimation Methods in Federal Statistics: Frameworks, Methods, and Assessment

The environment for obtaining information and providing statistical data for policy makers and the public has changed significantly in the past decade, raising questions about the fundamental survey ...

Change in Data Sources Led to Lower Inflation Reading

A methodological change contributed to a better-than-expected inflation report, prompting questions from some economists.
Pew Research Center

Methodology A: Unauthorized immigrant estimates

This report presents estimates of the number of unauthorized immigrants in the United States as of July 2023 and for previous years back to 1990. These estimates supersede all previously published Pew ...
UNHCR

UNHCR Statistical Online Population Database: Sources, Methods and Data Considerations

The 1951 Convention and the 1969 OAU Convention provide clear refugee definitions. The fact that more than 140 countries have acceded to the 1951 Convention or its 1967 Protocol, and many of these ...
Pew Research Center

Methodology B: Survey data on immigrants

This report presents estimates of the number of unauthorized immigrants in the United States as of July 2023 and for earlier years. As noted earlier in this report, the estimates presented here ...