Since c. 780 the economy can again be called a money economy; more and more taxes were imposed in form of money instead of in kind. This pressure forced farmers out of the land and into the cities in order to earn there the cash they needed for their tax payments. These men provided the labour force for industries, and this in turn led to the strong growth of the cities, especially in Central China where trade and industries developed most.
Wealthy people not only invested in industrial enterprises, but also began to make heavy investments in agriculture in the vicinity of cities in order to increase production and thus income. We find men who drained lakes in order to create fields below the water level for easy irrigation; others made floating fields on lakes and avoided land tax payments; still others combined pig and fish breeding in one operation.
The introduction of money economy and money taxes led to a need for more coinage. As metal was scarce and minting very expensive, iron coins were introduced, silver became more and more common as means of exchange, and paper money was issued. As the relative value of these moneys changed with supply and demand, speculation became a flourishing business which led to further enrichment of people in business. Even the government became more money-minded: costs of operations and even of wars were carefully calculated in order to achieve savings; financial specialists were appointed by the government, just as clans appointed such men for the efficient administration of their clan properties.
Yet no real capitalism or industrialism developed until towards the end of this epoch, although at the end of the twelfth century almost all conditions for such a development seemed to be given.
2 Political situation in the tenth century
The Chinese call the period from 906 to 960 the "period of the Five Dynasties" (Wu Tai). This is not quite accurate. It is true that there were five dynasties in rapid succession in North China; but at the same time there were ten other dynasties in South China. The ten southern dynasties, however, are regarded as not legitimate. The south was much better off with its illegitimate dynasties than the north with the legitimate ones. The dynasties in the south (we may dispense with giving their names) were the realms of some of the military governors so often mentioned above. These governors had already become independent at the end of the T'ang epoch; they declared themselves kings or emperors and ruled particular provinces in the south, the chief of which covered the territory of the present provinces of Szechwan, Kwangtung and Chekiang. In these territories there was comparative peace and economic prosperity, since they were able to control their own affairs and were no longer dependent on a corrupt central government. They also made great cultural progress, and they did not lose their importance later when they were annexed in the period of the Sung dynasty.
As an example of these states one may mention the small state of Ch'u in the present province of Hunan. Here, Ma Yin, a former carpenter (died 931), had made himself a king. He controlled some of the main trade routes, set up a clean administration, bought up all merchandise which the merchants brought, but allowed them to export only local products, mainly tea, iron and lead. This regulation gave him a personal income of several millions every year, and in addition fostered the exploitation of the natural resources of this hitherto retarded area.
3 Monopolistic trade in South China. Printing and paper money in the north
The prosperity of the small states of South China was largely due to the growth of trade, especially the tea trade. The habit of drinking tea seems to have been an ancient Tibetan custom, which spread to south-eastern China in the third century A.D. Since then there had been two main centres of production, Szechwan and south-eastern China. Until the eleventh century Szechwan had remained the leading producer, and tea had been drunk in the Tibetan fashion, mixed with flour, salt, and ginger. It then began to be drunk without admixture. In the T'ang epoch tea drinking spread all over China, and there sprang up a class of wholesalers who bought the tea from the peasants, accumulated stocks, and distributed them. From 783 date the first attempts of the state to monopolize the tea trade and to make it a source of revenue; but it failed in an attempt to make the cultivation a state monopoly. A tea commissariat was accordingly set up to buy the tea from the producers and supply it to traders in possession of a state licence. There naturally developed then a pernicious collaboration between state officials and the wholesalers. The latter soon eliminated the small traders, so that they themselves secured all the profit; official support was secured by bribery. The state and the wholesalers alike were keenly interested in the prevention of tea smuggling, which was strictly prohibited.
The position was much the same with regard to salt. We have here for the first time the association of officials with wholesalers or even with a monopoly trade. This was of the utmost importance in all later times. Monopoly progressed most rapidly in Szechwan, where there had always been a numerous commercial community. In the period of political fragmentation Szechwan, as the principal tea-producing region and at the same time an important producer of salt, was much better off than any other part of China. Salt in Szechwan was largely produced by, technically, very interesting salt wells which existed there since c. the first century B.C. The importance of salt will be understood if we remember that a grown-up person in China uses an average of twelve pounds of salt per year. The salt tax was the top budget item around A.D. 900.