1. The Changeover from CEMAP to NAICS:
Implications for the Production of Economic Statistics in México

2. Contents: Introduction CMAP and NAICS features
Necessary adjustments to the generation
of information process due to the classifier
changeover
Conclusions

3. Introduction
North America free trade agreement NAFTA

4. Introduction México United States of America Canada
Mexican Classification of activities and products
Standard Industrial Classification from USA
Standard Industrial Classification from Canada
North American Industrial Classification
NAICS

5. CMAP and NAICS features
Structure:
CMAP
NAICS
Sector
Sector
Sub-sector
Sub-sector
Sub-sector
Sub-sector
Branch
Branch
Branch
Branch
Branch
Branch
Branch
Sub-branch
Sub-branch
Sub-branch
Sub-branch
Class
Class
Class
Class
Class
Class
Class
Class
Class
Class
Class
Class
Class

6. Structure: Sector 9 Sub-sector 34 Branch 12 Class 754 Sector 20
CMAP
NAICS
Level of Aggregation
Number of categories
Sector 9
Sub-sector 34
Branch 12
Class
754
Level of Aggregation
Number of categories
Sector 20
Sub-sector 95
Branch
309
Sub-branch
631
Class
1051

7. Aggregation principles and criteria
CMAP
NAICS
similarity in the
production function
special importance to
new and emerging e.a.
and services
focused on the development
of advanced technology
production processes
type of goods and
products
participation of the
e.u. in the economy

8. Importance of the classifier
Allows the ordering of gathering, analysing
and broadcasting the information
Facilitates evaluation and comparison of
the economic activity

9. I. Production of Equivalence Tables
Necessary adjustments due to the
classifier changeover
I. Production of Equivalence Tables
II. Re-ordering the Sampling Frame
III. Coverage Analysis and Survey Redesign
IV. Construction of Parallel Series

10. Production of equivalence tables
CIIU
The bridge:
CMAP 94
CMAP 99
NAICS

11. The reclassification process
Census
Operative:
Assignment of CMAP99 code to 3.2 million of e.u.
Use of the equivalence table to assign the new code
Construction of the catalogue
Business Register
CMAP 94
NAICS
CIIU

12. Fragment of the catalogue of products with their CMAP99 class codes by type of activity
PRODUCTS AND / OR SERVICES
ACTIVITY
PRODUCTION
COMMERCE
SERVICE
WHOLESALE
RETAIL
RENT
REPAIR
BY TH E PUBLIC SECTOR
BY THE PRIVATE SECTOR
CLOTHING ACCESORIES FROM TEXTILE MATERIALS
322053
612022
623027
831211 -
METALLIC ACCESORIES FOR THE BATHROOM, MIXER FAUCETS, SHOWER EQUIPMENT
361231
612075
623084
NON METALLIC ACCESORIES FOR THE BATHROOM TOWEL, SOAP AND BRUSH HOLDERS
ACCESORIES FOR SEWING MACHINES FOR INDUSTRIAL USE
382143
612082
831131
961112
ACCESSORIES FOR GASOLINE ENGINES FOR INDUSTRIAL USE
382211
612087
831161
961119
ACCESSORIES AND ELECTRONIC COMPONENTS FOR ASSORTED EQUIPMENT
383251
612069

13. Fragment of the table of class correspondence CMAP99 - CIIU, NAICS, CMAP
ECONOMIC ACTIVITY
CIIU 3.1
NAICS
CMAP94 13
FISHERIES -
1300
FISHING
130011
SHRIMP CULTIVATION
500
112511
130020
130019
OTHER WATER FAUNA CULTIVATION
112519
130021
SHRIMP FISHING
114111
130012
130022
TUNA FISHING
114112
130023
SARDINE AND ANCHOVIE FISHING
114113
130029
FISHING OF OTHER SPECIES
114119
130013

14. Sample frame recognition
The economic units may pass from one
dominion to another
There are changes in the composition of the
economic activity
It´s necesary to obtain
the new structure and
re-order the sample frame

15. Recognising the changes
Total of sectors, sub-sectors, branches, sub-branches and class of activity for the main activities in México* according to the classifiers CMAP94 and NAICS97
No. Sectors
No. Sub-sectors
No. Branches
No. Sub-branches
No. Class of Activity
Activity
CMAP94
NAICS 97
NAICS97
Total 6 15 25 76
110
250 -
518
667
787
Construction 1 3 5 17 26
Manufacturig 9 21 54 86
182
306
293
Commerce 2 16 41 67
118
142
Services 11 13 36
252
217
335
* Frame excluding the public sector

16. Recognising the changes
Table of movements between the CMAP94 sector and the NAICS sector in number of economic units
CMAP94 Sector
Total
NAICS Sector
Manufacturing
Construction
Commerce
Services
Other NAICS Sector
2,755,788
336,283
14,494
1,426,725
973,831
4,455
337,462
335,034
2,035
393
10,300
10,288 12
1,427,842
1,424,270
3,548 24
Services*
980,184
1,249
4,206
2,455
968,248
4,026
*Only considering private non financial services

17. Recognising the changes
Table of movements between the CMAP94 sector and the NAICS sector in total of occupied personnel
CMAP94 Sector
Total
NAICS Sector
Manufacturing
Construction
Commerce
Services
Other NAICS Sector
14,059,747
4,349,177
701,766
3,919,865
5,039,454
49,485
4,409,936
4,346,584
55,408
7,944
669,779
666,477
3,302
3,908,787
3,897,696
9,733
1,358
Services*
5,071,245
2,593
35,289
22,169
4,974,313
36,881
*Only considering private non financial services

18. Coverage analysis and survey redesign
As the level of the structure is lowered the differences become more acute, then we must ask…
Has the sample mantained its coverage and representativity?
Are there new dominions?

19. Coverage analysis and survey redesign
An example: the Monthly Industrial Survey
The 205 classes became 248
The sample size increased from
to establishments

20. Coverage analysis and survey redesign
Regarding deterministic designs...
The sample maintains the weight in terms of:
Occupied personnel?
Value of the production?

21. Number of Establishments
Coverage of the number of establishments, occupied personnel and production value for two CMAP classes and their corresponding NAICS classes for the EIM
CMAP NAICS
Number of Establishments
Occupied Personnel
Production Value
Frame
Sample
Coverage %
Frame K$
Sample K$
CMAP94 Class
215 50
23.26
23 454
18 498
78.87
93.11
341021
NAICS97 Class
322121
322122 68
73.53
20 744
18 552
89.43
97.35
322220
156 42
56.92
8 724
6 435
73.76
90.23
322291 27 11
40.74
6 187
3 986
64.43
69.97
218 32
14.68
6 888
4 975
72.23
82.72
382106
333120 51 13
25.49
4 841
3 629
74.96
73.95
333220 55 6
10.91
968
307
31.71
87 963
46.18
333293 30
217
38 571
333294 7 71
12 933
333299 80 16
20.00
4 026
3 382
84.00
87.75
339111
458 25
5.46
7 196
3 720
51.70
61.89

22. Construction of parallel series
New state in the behavior of economic activity
Redesign
In order to:
Avoid wrong
interpretations
Maintain
comparability
To maintain
parallel series

23. Maintaining parallel series for the Monthly Industrial Survey
2003
2004
2005
JAN
FEB
MAR
JAN
FEB
MAR
JAN
FEB
MAR
CMAP Serial
NAICS Serial

24. Conclusions The B.R. isn´t only a list to identify the e.u.
The B.R. is an instrument for the production of statistical information
The B.R. must be a support instrument to maintain the congruence between the results of the information production before and after the change of classifier
A change in the classifier requires more than the introduction of a new field in the database to storage the new economic activity of the e.u.