In 2019 SIPP, one respondent (SSUID = 66786009228019 and PNUM = 102) was imputed to have negative hourly earnings values. The imputed value was due to two issues: (1) SIPP’s Sequential Regression Multiple Imputation (SRMI) Earnings process accidentally allowing for a negative hourly earnings value to be assigned, and (2) the profits questions treating the imputed value as a spell-level variable even though the questions ask about annual profits.

The issue with negative values in the SRMI process has been addressed for future years. Users wishing to learn more about the profits issue should see the User Note titled “2019 SIPP: Business Profits Collection and Processing Issue”.

We recommend that data users use the value of $13.50 per hour for January, February, and June to December for this case. Using this new value, the calculated alternative values for TJB1_WKSUM(i), TJB1_MSUM, TJB1_MSUMALT, TPEARN, and TPEARN_ALT are as follows:

Monthcode	tjb1_hourly1
1	13.50
2	13.50
6	13.50
7	13.50
8	13.50
9	13.50
10	13.50
11	13.50
12	13.50

Monthcode	tjb1_wksum1	tjb1_wksum2	tjb1_wksum3	tjb1_wksum4	tjb1_wksum5
1	405	405	405	405	405
2	405	405	.	.	.
6	405	405	405	405	405
7	405	405	405	405	405
8	405	405	405	405	405
9	405	405	405	405	405
10	405	405	405	405	405
11	405	405	405	405	405
12	405	405	405	405	405

Monthcode	tjb1_msum	tjb1_msumalt	tpearn	tpearn_alt
1	1782	1760	-14,034	-13,759
2	983	1069	-7,604	-8,353
6	1740	1760	-1,716	-1,744
7	1782	1760	-1,789	-1,744
8	1782	1760	-1,789	-1,744
9	1740	1760	-1,716	-1,744
10	1782	1760	-1,789	-1,744
11	1740	1760	-1,716	-1,744
12	1782	1760	-1,789	-1,744

Page Last Revised - March 24, 2022

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2019 SIPP: One Case with Negative Hourly Earning Values

2019 SIPP: One Case with Negative Hourly Earning Values

Monthcode

tjb1_hourly1

Monthcode

tjb1_wksum1

tjb1_wksum2

tjb1_wksum3

tjb1_wksum4

tjb1_wksum5

Monthcode

tjb1_msum

tjb1_msumalt

tpearn

tpearn_alt