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Migrating out of mega-cities: Evidence from Brazil Cover
By:   
Open Access
|Mar 2021

Figures & Tables

Figure 1

Map of greater regions and metropolitan cities of Brazil.

Table 1

Migrants between metropolitan and non-metropolitan microregiões between 2009 and 2010

Destination
Non-metropolitanMetropolitan
OriginN%N%
Non-metropolitan380,62746.9167,78120.7
Metropolitan162,64720.199,14312.2

[i] Total N = 810,196, using survey weights.

Figure 2

Out-migration rate from metropolitan cities from 2004 to 2009.

Table 2

Characteristics of metropolitan and non-metropolitan microregiões in 2010

MetropolitanNon-metropolitan
MeanCoeff. of variationMeanCoeff. of variation
Population2,679,6871.11213,6800.79
Room rent (R$, median)72.470.2345.220.42
Hourly wage (R$)12.110.227.230.29
Share of
Unskilled workers0.370.090.370.14
Skilled workers0.310.110.400.14
High-skilled workers0.240.170.160.23
Formally employed0.580.110.400.36
Unemployed0.060.290.050.41
Share of workers in
Agriculture0.090.360.300.39
Industry0.210.230.180.37
Services0.530.080.350.23
Public services0.110.250.120.24
People living in
Adequate living conditions0.570.280.360.67
Other measures
GDP growth 2005–20100.160.310.180.79
Health facilities (per 100,000)16.400.4241.860.35
Health quality index (0–1)0.820.090.790.11
Education quality index (0–1)0.770.140.730.14
Homicide rate (per 100,000)38.000.5418.580.77
Table 3

Characteristics of migrants and non-migrants 2010

Non-metropolitan residentsMetropolitan out-migrantsMetropolitan residents
Number of observations4,184,90419,3181,598,869
Age40.2536.8540.22
Female0.410.370.45
White0.510.510.51
Education level
None, primary incomplete0.470.290.29
Primary, secondary incomplete0.160.160.17
Secondary, higher incomplete0.260.330.36
Higher complete0.110.210.19

[i] Proportions and means are computed using survey weights.

Table 4

Labor market characteristics of migrants and non-migrants 2010

Non-metropolitan residentsMetropolitan out-migrantsMetropolitan residents
Unemployed0.050.120.06
Log (monthly wages)6.596.956.98
Sector
Formal private0.400.430.56
Formal public0.060.080.06
Informal0.260.230.21
Self-employed0.020.020.01
Small business0.260.240.15
Industry, ISIC
Agriculture0.260.140.09
Industry0.220.270.21
Services0.380.440.54
Public services0.150.170.17

[i] Proportions and means are computed using survey weights.

[ii] Industries include extractive industry processing industry, electricity/gas, sanitation/sewage, construction.

[iii] Services include commerce, transport, housing/food, information/communication, financial services, real estate, professional consulting, science and technology, administrative services, Arts/culture/sports, domestic services, and other services.

[iv] Public services include public administration, security, education, health and social services, and international organizations/foreign institutions.

Table 5

Difference between non-metropolitan destination and metropolitan origin comparing chosen destination to alternative destinations

Difference between destination and origin inChosen destinationAlternative destinationst-statistic, difference in mean
Expected hourly wages (log)−0.53−0.61−24.7
Matched expected wages (log)−2.73−2.79−16.2
Rent per room (log)−0.55−0.64−21.9
IV (wages in neighboring MRs, log)−0.10−0.14−23.5
Population in thousands−5,605−6,326−17.1
Homicide rate−17.66−14.1118.2
Health facilities (per 100,000)25.4926.468.1
Health provision quality index (0–1)−0.03−0.05−24.0
Education provision quality index (0–1)−0.00−0.04−32.8
Distance to origin (km)5731,295108.6
Other state than origin0.450.92202.4
Table 6

Destination choice conditional on migration, alternative specific logit

(1)(2)(3)
Wage measure:Expected wages (log)Matched expected wages (log)
Price measure:Rent per room (log)Wages in neighboring locations (log)
Difference in:
Wages0.054 (0.175)−0.041 (0.234)−0.069 (0.244)
Prices−0.173 (0.213)−0.805 (0.730)−0.822 (0.631)
Population (log)−0.019 (0.068)−0.040 (0.064)0.011 (0.080)
Homicide rate0.004 (0.004)
Health facilities0.008*** (0.003)
Health quality index−1.292* (0.758)
Education quality index1.569* (0.929)
Destination specific:
Distance to origin (log)−0.524*** (0.085)−0.523*** (0.087)−0.521*** (0.087)
Other state−1.800*** (0.265)−1.850*** (0.258)−1.853*** (0.250)
Observations573078257307825730782
Wald chi274212221367
Number of cases145091450914509
Number of alternatives514514514

Standard errors are clustered at the metropolitan microregião of origin. Estimator is alternative specific conditional logit. In each column, the first set of regressors is the difference between destination and origin for each destination alternative. The second set, indicated as Destination specific, is measured at destination relative to the origin. Prices are measured with the rent per room. Columns 2 and 3 use expected wage differences based on past migrants at the destination and matched residents at origin as explained in Section 4.1. Significance levels

* 10%,

** 5%,

*** 1%.

Table 7

Destination choice conditional on migration by the education of migrant, alternative specific logit

(1)(2)(3)(4)
Level of education:None or primaryLower secondaryUpper secondaryHigher
Difference in:
Matched expected wages (log)−0.279 (0.255)−0.161 (0.328)−0.023 (0.238)0.336 (0.238)
Prices (IV)−1.360* (0.700)−1.205* (0.691)−0.686 (0.638)0.202 (0.563)
Population (log)−0.028 (0.093)0.049 (0.112)0.022 (0.076)0.036 (0.069)
Homicide rate0.004 (0.004)0.003 (0.003)0.006 (0.004)0.000 (0.004)
Health facilities0.009*** (0.004)0.010** (0.004)0.008** (0.003)0.002 (0.003)
Health quality index−0.787 (0.950)−0.754 (0.953)−1.668* (0.886)−2.184** (0.852)
Education quality index1.684 (1.128)1.238 (1.114)1.977* (1.019)1.055 (0.693)
Destination specific:
Distance to origin (log)−0.496*** (0.086)−0.574*** (0.081)−0.515*** (0.102)−0.538*** (0.104)
Other state−1.963*** (0.253)−1.808*** (0.261)−1.881*** (0.281)−1.663*** (0.282)
Observations187119395410918400231065457
Wald chi2765125516582850
Number of cases4835242545982651
Number of alternatives514514514514

Standard errors are clustered at the metropolitan microregião of origin. Estimator is alternative specific conditional logit. Expected wage differences are based on past migrants at destination and matched residents at origin as explained in Section 4.1. Prices are measured with average municipality wages from neighboring mciroregiões. In each column, the first set of regressors is the difference between destination and origin for each destination alternative. The second set, indicated as Destination specific, is measured at destination relative to the origin.

Significance levels

* 10%,

** 5%,

*** 1%.

Table 8

Elasticities of significant covariates by sub-sample

EducationNo or primaryLower secondaryUpper secondaryHigher
Distance (log)−3.4−4.0−3.6−3.7
Other state−1.8−1.7−1.7−1.5
Health facilities0.20.30.20.1
Prices (IV)0.20.20.10.0
Education quality−0.1−0.1−0.10.0
Health quality0.00.00.10.1
Table 9

Differences in actual and predicted wages for metropolitan out-migrants, after matching

Log (nominal hourly wages)NMean
Observed15,4241.816
Predicted15,4242.069
Difference−0.253***
Log (real hourly wages)NMean
Observed15,424−2.237
Predicted15,424−2.396
Difference0.159***

Significance levels

* 10%,

** 5%,

*** 1% for t-test of difference in means between observed and predicted wages. Predicted wages are based on a matched sample of metropolitan residents.

Table 10

Differences in actual and predicted wages for metropolitan out-migrants, by education level

High-educated
Log (nominal hourly wages)NMean
Observed3,1072.846
Predicted3,1072.930
Difference−0.084***
Log (real hourly wages)NMean
Observed3,107−1.270
Predicted3,107−1.544
Difference0.274***
Low-educated
Log (nominal hourly wages)NMean
Observed12,3171.556
Predicted12,3171.851
Difference−0.295***
Log (real hourly wages)NMean
Observed12,317−2.481
Predicted12,317−2.611
Difference0.130***

Significance levels

* 10%,

** 5%,

*** 1% for t-test of difference in means between observed and predicted wages. Predicted wages are based on a matched sample of metropolitan residents.

Figure 3

Kernel density plots of actual and predicted nominal wages of metropolitan out-migrants with matching.

Figure 4

Kernel density plots of actual and predicted real wages of metropolitan out-migrants with matching.

Table 11

Differences in actual and predicted real wages for metropolitan out-migrants using hedonic prices as a denominator, after matching

Log (real hourly wages)NMean
Observed15,424−2.105
Predicted15,424−2.155
Difference0.050***

Significance levels

* 10%

** 5%

*** 1% for t-test of difference in means between observed and predicted wages. Predicted wages are based on a matched sample of metropolitan residents.

Figure A1

Price instrument (average wages in contiguous microregiões) and prices (average municipality rents in microregião).

Table A1

Balancing statistics before matching

Multivariate L1 distance:0.83541258
Univariate imbalance:L1MeanMin25%50%75%Max
Age at migration0.10634−2.2895−1−1−3−3−1
Sex0.0979−0.097900000
Education level0.07352−0.129220−1000
Race0.005760.0057600000
City of origin0.145030.7265600400
Marital status0.01909−0.009800000
Sector of activity0.15388−0.966890−3−10−1
Table A2

Balancing statistics after matching

Multivariate L1 distance:0.78689126
Univariate imbalance:L1MeanMin25%50%75%Max
Age at migration0.04019−0.15014000−10
Sex0.06926−0.0692600000
Education level0.03117−0.0311700000
Race0.00467−0.0046700000
City of origin0.004790.0047900000
Marital status0.02571−0.0257100000
Sector of activity0.003550.0035500000
Table A3

Matching summary

Number of strata:9,796
Number of matched strata:3,785
Non-migrantsMigrants
All683,51716,172
Matched587,34615,401
Unmatched96,171771
Table A4

Differences of actual and predicted wages for metropolitan out-migrants, before matching

Log (nominal hourly wages)NMean
Observed14,8101.767
Predicted14,8101.874
Difference−0.107***
Log (real hourly wages)NMean
Observed14,810−2.466
Predicted14,8100.303
Difference0.303***
Log (real hourly wages)NMean
Hedonic price as denominator
Observed14,810−2.353
Predicted14,8100.204
Difference0.204***

Significance levels

* 10%,

** 5%,

*** 1% for t-test of difference in means between observed and predicted wages.

Table A5

Observed and predicted real wage differences using different measures of living costs

Log (real hourly wages)
High skilled
Skill-specific mean rentsNMean
Observed2,702−1.587
Predicted2,702−2.098
Difference0.510***
Skill-specific median rentsNMean
Observed2,702−1.508
Predicted2,702−1.948
Difference0.439***
Median hedonic pricesNMean
Observed2,702−1.161
Predicted2,702−1.469
Difference0.308***

Significance levels

* 10%,

** 5%,

*** 1% for t-test of difference in means between observed and predicted wages. Predicted wages are based on a matched sample. Rent for the room is aggregated at the micro-region level. Skill-specific rents are the rent per room aggregated only for the high or low skilled observations respectively in a micro-region applying population survey weights. Once the mean is aggregated, in another case the median. Lastly, the author also uses the median to aggregate the hedonic housing price measure. These different price measures are used as denominator to compute real hourly wages.

Table A6

Observed and predicted real wage differences using different measures of living costs

Log (real hourly wages)
Low skilled
Skill-specific mean rentsNMean
Observed11,393−2.456
Predicted11,393−2.691
Difference0.235***
Skill-specific median rentsNMean
Observed11,393−2.365
Predicted11,393−2.589
Difference0.224***
Median hedonic pricesNMean
Observed11,393−2.374
Predicted11,393−2.555
Difference0.181***

Significance levels

* 10%,

** 5%,

*** 1% for t-test of difference in means between observed and predicted wages. Predicted wages are based on a matched sample. Rent for the room is aggregated at the micro-region level. Skill-specific rents are the rent per room aggregated only for the high or low skilled observations respectively in a micro-region applying population survey weights. Once the mean is aggregated, in another case the median. Lastly, the author also uses the median to aggregate the hedonic housing price measure. These different price measures are used as denominator to compute real hourly wages.

Table A7

Regression of housing prices on housing characteristics, OLS estimates

log(rent per room)
Urban area0.256*** (0.005)
Type of dwelling (Base = House)
Townhouse/condominion0.146*** (0.003)
Flat0.396*** (0.002)
Hut0.196*** (0.006)
Wall material (Base = Bricks coated)
Bricks not coated−0.160*** (0.002)
Wood−0.265*** (0.003)
Plaster coated−0.461*** (0.015)
Plaster not coated−0.521*** (0.020)
Wood unprepared−0.344*** (0.010)
Straw−0.073 (0.155)
Others−0.146*** (0.015)
Bathroom (Base = none)
1−0.213*** (0.006)
2−0.095*** (0.006)
30.047*** (0.007)
40.220*** (0.012)
50.355*** (0.027)
60.517*** (0.054)
70.430*** (0.119)
81.046*** (0.237)
9 or more0.356*** (0.083)
Sanitation (Base = General sanitation network)
Septic sump−0.089*** (0.002)
Rudimentary Sump−0.200*** (0.002)
Ditch−0.225*** (0.005)
River, lake or sea−0.152*** (0.004)
Other−0.212*** (0.009)
Waste water (Base = General distribution network)
Well on property0.007** (0.003)
Well outside property−0.088*** (0.005)
Carro-pipa−0.072*** (0.014)
Rainwater cistern−0.074*** (0.028)
Rain water other−0.097 (0.068)
Rivers, lakes, etc.−0.081*** (0.023)
Other−0.155*** (0.010)
Well in village0.165** (0.066)
Canalization access (Base = Yes, in min. 1 room)
Yes, only on the property−0.052*** (0.004)
No−0.148*** (0.006)
Garbage collection (Base = Collected directly)
Collected in collective−0.054*** (0.002)
Burnt−0.229*** (0.008)
Buried−0.017 (0.043)
Tossed in a public area−0.229*** (0.008)
Tossed in river, lake, or sea−0.195*** (0.036)
Other0.005 (0.027)
Electricity provision (base = Yes by the company)
Yes, other−0.094*** (0.010)
No electricity−0.238*** (0.021)
Constant4.235*** (0.016)
Microregion dummiesYes
Observations927,192
R-squared0.539

Standard errors are robust. Observations are households.

Significance levels

* 10%,

** 5%,

*** 1%.

Table A8

Coefficients and t-statistics of prediction of wages for migrants based on past migrants at the destination, OLS

Log(hourly wage)
Coefficientt-statistic
Age0.04818.250
Age squared−0.045−13.939
Female−0.368−61.567
White0.12319.385
Education (Base = none)
Primary, secondary incomplete0.24028.118
Secondary, higher incomplete0.53071.485
Higher complete1.441154.831
Mean (Log (hourly wage)) =−0.754

[i] OLS estimates weighted with population weights. The samples were all migrants who moved more than one year ago to the destinations.

Table A9

Observed and predicted real wage differences using different measures of living costs, metropolitan in-migrants

Log (real hourly wages)
High skilled
Skill-specific mean rentsNMean
Observed1,068−1.931
Predicted1,068−1.974
Difference0.043*
Skill-specific median rentsNMean
Observed1,068−1.795
Predicted1,068−1.894
Difference0.099***
Low skilled
Skill-specific mean rentsNMean
Observed7,357−2.775
Predicted7,357−2.501
Difference−0.274***
Skill-specific median rentsNMean
Observed7,357−2.680
Predicted7,357−2.394
Difference−0.286***

Significance levels

* 10%,

** 5%,

*** 1% for t-test of difference in means between observed and predicted wages. Predicted wages are based on a matched sample. Rent for the room is aggregated at the micro-region level. Skill-specific rents are the rent per room aggregated only for the high or low skilled observations respectively in a micro-region applying population survey weights. Once the mean is aggregated, in another case the median. Lastly, the author also uses the median to aggregate the hedonic housing price measure. These different price measures are used as denominator to compute real hourly wages.

Table A10

Variables and data sources

VariableDescriptionSource
Variables for descriptive statistics and destination choice model on microregião level
Wages (IV)Average monthly wages in neighboring microregiãoRAIS*
Housing pricesAverage rent on microregião levelCensus, IBGE
Education provision quality indexIndex from 0 to 1, computed based on: Subscription rate of pre-school children, dropout rateFIRJAN**
Rate of teachers with higher education, average daily teaching hours, results of the IDEB (Indicator of development of education in Brazil)
Health provision quality indexIndex from 0 to 1, computed based on: Number of pre-natal consultations, deaths due to mal-defined causes, child-deaths due to evitable causesFIRJAN**
Number of health care facilitiesPer 100,000 inhabitants; include general hospitals, day hospitals, polyclinics, health point, general emergency, pharmacy, basic health center.CNES***
Homicide ratePer 100,000 inhabitants in 2008Ipeadata
Distance to the state capitalIndicator for market access (Fally et al. 2010)Ipeadata
GDPLog of GDP in 2009Ipeadata
Distance between origin and destinationGeodesic distance as an indicator for fixed moving costs, author's calculation from coordinatesCensus, IBGE
Additional variables for wage regression, on an individual level
Partner participationDummy whether the partner is workingCensus, IBGE
The proportion of children in the householdCensus, IBGE
Marital statusSeparated/divorced/widowed, single, marriedCensus, IBGE
SectorPublic, private, informal, self-employedCensus, IBGE
Industry21 industries according to International Standard Industrial Classification of all Economic Activities (ISIC)Census, IBGE
Federal state27 statesCensus, IBGE
Variables for matching, on an individual level
AgeAt the time of migration, i.e., one year agoCensus, IBGE
RaceWhite and non-whiteCensus, IBGE
Education levelPrimary, middle, high-school, collegeCensus, IBGE
Micro-region of origin/residencyCity of origin for migrants and city of residency for comparison group of non-migrantsCensus, IBGE

* RAIS (National formal sector firm and employment registry).

** FIRJAN (Industrial federation in Rio de Janeiro state).

*** CNES (National Health Establishments Registry).

Language: English
Accepted on: May 17, 2020
Published on: Mar 26, 2021
Published by: Sciendo
In partnership with: Paradigm Publishing Services
JEL:

© 2021 Eva-Maria Egger, published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 License.