| The meaning and calculation basis | Number of observations | Mean value | The standard deviation | The minimum value | The maximum value |
cab | Current account balance as a share of GDP (%) | 638 | 0.68 | 16.17 | −107.88 | 32.32 |
ydr | The youth dependency ratio, that is, the number of children aged 0 - 14/the number of working people aged 15 - 64 (%) | 638 | 28.86 | 9.65 | 9.64 | 57.56 |
edr | The elderly dependency ratio, that is, the population over the age of 65/the number of working people aged 15 - 64 (%) | 638 | 11.43 | 2.56 | 5.25 | 21.88 |
lnreer | The real effective exchange rate, that is, the bilateral nominal exchange rate between China and the United States * the CPI of various provinces in China based on the year of 1994/the US CPI based on the year of 1994 | 638 | −1.85 | 0.14 | −2.15 | −1.60 |
lngdp | Actual per capita national income, that is, real GDP per capita, taking the logarithm | 638 | 9.53 | 0.96 | 7.28 | 11.55 |
fdi | Foreign direct investment as a share of GDP (%) | 638 | 3.11 | 3.05 | 0.07 | 24.25 |
open | The degree of trade openness, that is, the ratio of import and export to GDP (%) | 638 | 31.35 | 39.51 | 3.21 | 217.33 |
gov | Public expenditure, that is, the proportion of local fiscal expenditure in GDP (%) | 638 | 16.71 | 8.62 | 3.33 | 62.74 |