Evaluating Components of International Migration:
Foreign-Born Emigrants

Appendix A: Description of SAS Programs Used to Replicate Ahmed and Robinson's 1980-1990 Emigration Estimates.

Step #	Description	SAS Programs	Data
			Input	Output
Pre-1980 Selected
1   Acquire 1980 base population adjusted for cases with unknown country of birth.		FB80CEN	fb80cen.dat *	fb80t.dat * fb80m.dat * fb80f.dat *
2   Create a file containing the foreign-born population enumerated in the 1990 census. Recode the country of birth from 111 categories to 40.		d_fb90_c40	fb111_ad.dat *	d_fb90_c40.dat
3   Calculate the preliminary number of emigrants for the total population that entered before 1980 by age, sex, country of birth, and period of entry.		d_FB_EMIG	d_fb90_c40.dat d_fb80f.dat	d_fbemig_t.dat d_fbemig_m.dat d_fbemig_f.dat
4   Recreate the number of emigrants and the emigration rate for SELECTED countries by age, sex, and race group, and period of entry.		d_Fb_1980_select	d_fbemig_m.dat d_fbemig_f.dat	d_Fb_1980_sel.dat d_Fb_1980_sel_race.dat d_Fb_1980_sel_rate.dat d_Fb_70_79_sel.dat
1980-1990 Selected
5   Calculate the proportional distribution of the 1980-1990 entrant foreign born population enumerated in 1990, the average length of stay, the mid-point of age in 1990, and the average age at entry.		d_Fb_8090_midpt	d_fb90_c40.dat	d_Fb_8090_midpt.dat
6   Estimate the 1980-1990 number of emigrants (and rates) for SELECTED countries that entered 1980-1990 by age, sex, and race group.		d_Fb_emig_8090	d_fb90_c40.dat d_Fb_8090_midpt.dat d_Fb_70_79_sel.dat d_SR_1990_15.prn *	d_emig_8090_age.dat d_ERSR_8090_age.dat
1980-1990 Non-Selected
7   Create data sets for the 1980-1990 entrants enumerated in 1990 by age, sex, country of birth, and period of entry NON-selected countries.		d_fb_8090_nonsel	d_fb90_c40.dat	d_fb_8090_nonsel.dat
8   Estimate the number of 1980-1990 entrant emigrants for NON-selected countries by age, sex, and race.		d_Fb_emig_8090_nonsel	d_ERSR_8090_age.dat d_Fb_8090_nonsel.dat	d_Fb_emig_8090_nonsel.dat
Pre-1980 Non-Selected
9   Create data set that contains the 1980 enumerated foreign born that entered before 1980 for NON-selected countries by age, sex, race, and period of entry.		d_Fb_1980_nonsel.sas	d_fbemig_m.dat d_fbemig_f.dat	d_Fb_1980_nonsel.dat
10   Estimate the number of before 1980 entrant emigrants for NON-selected by age and race.		d_Fb_emig_1980_nonsel	d_Fb_1980_nonsel.dat d_Fb_1980_sel_rate.dat	d_Fb_emig_1980_nonsel.dat
Final Estimates
11   Merge four files with the estimated number of emigrants for the before 1980 and 1980-1990 entrants and selected/non-selected countries to estimate the 1980-1990 emigrants by age, sex, and race.		d_Fb_emig_final	d_Fb_1980_sel.dat d_emig_8090_age.dat d_Fb_emig_8090_nonsel.dat d_Fb_emig_1980_nonsel.dat	d_Fb_emig_final.dat d_Fb_emig_94.dat

(*)existing data

Appendix B: Categorical Age Variables Used to Replicate Ahmed and Robinson's 1980-1990 Emigration Estimates.

Appendix C: Country of Birth Variables Used to Replicate Ahmed and Robinson's 1980-1990 Emigration Estimates.

Country classification for the 1980-1990 estimate period (40 categories with 8 regional and total categories that were not used in programming):

1   All Countries, Total
2   North & Central America, Total
    3       Mexico
    4       Cuba
    5       Dominican Republic
    6       El Salvador
    7       Guatemala
    8       Canada
    9       Haiti
    10      Jamaica
    11      Trinidad & Tobago
    12      Other N. & C. American Countries
13  South America, Total
    14      Argentina
    15      Colombia
    16      Ecuador
    17      Peru
    18      Other South American Countries
19	Europe, Total
    20      France
    21      Germany (East & West)
    22      Greece
    23      Ireland
    24      Italy
    25      Netherlands
    26      Poland
    27      Portugal
    28      Spain
    29      U.S.S.R 
    30      United Kingdom
    31      Yugoslavia
    32      Other European Countries
33	Asia, Total
    34      Middle East, Total
    35      Iran
    36      Israel
    37      Other Middle Eastern Countries
38 	South & East Asia, Total
    39      China & Taiwan
    40      India
    41      Japan
    42      Korea
    43      Philippines
    44      Other S. & E. Asian Countries
    45      Africa, Total
46	Oceania, Total
    47      Australia
    48      Other Oceania

Country classification for the 1990 Census (111 categories):

1	Mexico
2	Cuba
3	Dominican Republic
4	Costa Rica
5	El Salvador
6	Guatemala
7	Honduras
8	Nicaragua
9	Panama
10	Other Latin N & C America
11	Canada
12	Belize
13	Bahamas
14	Barbados
15	Haiti
16	Jamaica
17	Trinidad and Tobago
18	Other West Indies
19	Other N and C America
20	Argentina
21	Bolivia
22	Brazil
23	Chile
24	Colombia
25	Ecuador
26	French Guyana, Suriname
27	Guyana
28	Paraguay
29	Peru
30	Uruguay
31	Venezuela
32	Other South America
33	Albania
34	Austria
35	Belgium
36	Bulgaria
37	Czechoslovakia
38	Denmark
39	Finland
40	France
41	Germany (East, West, Berlin)
42	Greece
43	Hungary
44	Ireland
45	Italy & the Vatican
46	Netherlands
47	Norway
48	Poland
49	Portugal
50	Romania
51	Spain
52	Sweden
53	Switzerland
54	United Kingdom
55	Yugoslavia
56	U.S.S.R. (as reported)
57	Baltics (Est.-Lat.-Lith.)
58	Other Northern Europe
59	Other Eastern Europe
60	Other Southern Europe
61	Other Western Europe
62	Europe, not specified
63	Iran
64	Iraq
65	Israel
66	Jordan
67	Lebanon
68	Saudi Arabia
69	Syria
70	Turkey
71	Other Middle East
72	Afghanistan
73	Bangladesh
74	Burma
75	China
76	Hong Kong
77	India
78	Indonesia
79	Japan
80	Cambodia
81	Korea
82	Laos
83	Malaysia
84	Pakistan
85	Philippines
86	Sri Lanka
87	Taiwan
88	Thailand
89	Vietnam
90	Other South and East Asia
91	Algeria 
92	Cape Verde
93	Egypt
94	Ethiopia
95	Ghana
96	Kenya
97	Liberia
98	Libya
99	Morocco
100	Nigeria
101	South Africa
102	Sudan
103	Tanzania
104	Uganda
105	Zimbabwe
106	Other northern Africa
107	Other Africa
108	Australia
109	New Zealand
110	Other Oceania
111	Antarctica

Source: Population Division, U.S. Census Bureau.

Appendix D. Demographic Analysis-Population Estimates (DAPE) Research Project Related to Evaluating Components of International Migration (in order of Working Paper Series Number).