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Table 4 Monthly household income by range and respondent’s contribution (n = 1541)

From: Impact of environmental and social attitudes, and family concerns on willingness to pay for improved air quality: a contingent valuation application in Mexico City

Monthly household

Respondent’s contribution to household income

income

Less than 50%

50% to 75%

more than 75%

Less than US $567

18.36

11.10

12.07

Between US $567 and US $ 967

16.22

5.71

11.49

Between US $967 and US $2167

7.14

6.75

7.85

Between US $2167 and US $5000

0.00

3.31

0.00