I am trying to link CPSIDP across years to see EARNWEEK.
To do so, I retrieved data from 1990 to 2015 (I consider EARNWEEK so I only consider MISH==4 and MISH==8. At the moment I both have ASEC and Basic Monthly Survey).
gen time = ym(year, month)
keep if (time==
t' & mish==8)|(time==t’-12 & mish==4)
order cpsidp year month
sort cpsidp year month
by cpsidp: gen obs=_N
by cpsidp: drop if obs!=2
Now, before even I start to verify the sanity of matching using cpsidp, I get 0 matched observations from July 1994 to August 1995; i.e., I cannot link CPSIDP in July 1994 with July 1993, August 1994 with August 1993, … , and August 1995 with August 1994.
Is this something expected? It seems like Drew, Flood, and Warren (2014) Table 5 successfully matched responses using CPSIDP in March 1995 to March 1994, which I cannot get.