China Policy Journal Volume 1, Number 1, Fall 2018 | Page 75

China Policy Journal
Stratified random sampling was
used to ensure an appropriate balance
of representativeness across the surveyed
cities. The sample size for each
city was determined to be roughly proportional
to its total population size (cf.
Table 1). The recruited samples generally
show relatively good gender balance
but a higher concentration of younger
and more educated people in our sample
compared with the general population
(cf. Table 2).
Table 1. Sample Details for Each City
City
Population 2
(Million)
1
After the data cleaning. 2 Data source: Statistics book of sixth national population census of the People’s
Republic of China. The database illustrated here is the sub-sample (about the half of the total sample) of
the survey using the Multiple-Bound Discret Choice format WTP question. The other part of the data
that we did not use in this paper is based on a dichotomous choice format WTP question.
72
Sample Size 1
Guangzhou 12.7 110
Shenzhen 10.4 90
Dongguan 8.2 71
Fuoshan 7.2 35
Guiling 7 55
Nanning 6.7 31
Kunming 6.4 48
Qujing 5.9 33
Guiyang 4.3 30
Guigang 4.1 11
Zhaoqing 3.9 35
Liuzhou 3.8 35
Baise 3.5 20
Qiannan 3.2 30
Zhongshan 3.1 11
Wuzhou 2.9 18
Qianxinan 2.8 23
Yunfu 2.4 15
Yuxi 2.3 11
Zhuhai 1.6 15
Total 102.4 727