power an economic boom that has seen living standards rocket for people like cui minggui (tsway - meeng gway). >>minggui: now, it's much better, it's much better. so when i had my first children there were no vegetables toeat - we didn't even have rice. and now for example, we have chicken and duck, even more than we can eat. >>reporter: but with the population spiralling, in the 1970s the government limited most couples to just one child. though rural families can have two if the first born is a girl. it worked - if they hadn't therewould be 400 million more chinese today. >>at the same time the party encouraged villagers to leave the land and find work in the booming cities. >>luxian: now, you know it's all like this - no young people stay in the village. i have young children and old parents. if i stay at home doing farming, the income is really small. here, i do house cleaning and my husband usually works on city construction sites. >>reporter: cui minggui's daughter li luxian, earns 250 dollars a month cleaning houses, 4 times what most ruralworkers bring in, so she can support her chil