PUMS Allocation Data

HI All,

Thank you for your insights in advance. I would like to better understand the PUMS data variables, missing data, and allocated questions. This is the first time I am working with PUMS data and analyzing such a large dataset. 

1. Why do some questions have allocation variables associated with them and others do not? For example, in the household unit variables, the question multigenerational household does not have an associated allocation flag variable.  

2. What is the relationship between the allocation flag variable and the corresponding question? Do the questions with allocation flag variables have the allocated answers within the observations or does the missing data in the question responses represent the number of people who chose not to answer or had an implausible response? 

Thank you!