Specifically, I form three matching-firm samples based and two-, three-, or four-digit SIC codes
To gather a list of these entities within the geographic boundaries of our selected area, the process is a matter of determining the proper SIC codes
6 percent for IPOs issued in all SIC codes
Refer to the NAISC/SIC document listing the most commonly used SIC codes
, visit www.
It is assumed that stratifying firms based on four-digit SIC codes
will control for differences between industries.
are 7311, 7312, 7313, 7391, 7331, 7336, 7812, 8742 and 8743.
The NAICS codes are organized into industry groupings, descriptions of each industry, important reference information, industry cross-references, and an appendix that matches the old SIC codes
to the new NAIC codes.
EPA is currently working on Toxic Release Inventory (TRI) reporting software to assist foundries with the completion and filing of their Form Rs for SIC codes
332, 3335, 3336 and 3339.
Most business researchers will be happy to find that frustrating SIC codes
such as 8748 "Business Consulting Services, Not Elsewhere Classified (NEC)" are not as imprecise in the NAICS system.
The reason is that plastics manufacturers are often listed under several SIC codes
, and accidents can come up under any of them.
Tables showing correspondence between 1997 NAICS and 1987 SIC codes
The data are for publicly traded firms in a variety of SIC codes