I am not vouching for this, but it is worth considering as part of the saga of Austro-Chinese business cycle theory:
…the size of the Government’s debt is vastly understated. Not included in the public debt figures are the liabilities of the local governments, which the Ministry of Finance estimated at $680bn as of the end of 2008. In addition to that, a large part of the loans extended this year (estimated at $350bn) went to finance public infrastructure projects guaranteed by local governments. Furthermore, when the Chinese government bailed out its banking system in 2003, it set up Asset Management Companies that issued bonds to the banks at par for the non-performing loans that were transferred to them. These bonds, worth about $260bn, are explicitly guaranteed by the Ministry of Finance and the Central Bank and sit on the balance sheets of the big four banks. The Chinese government also explicitly guarantees $400bn worth of debt of the three “policy banks”. In total, these off-balance sheet liabilities are equal to $1.7tn, which would bring China’s public debt to GDP ratio up to 62%, a level that is comparable to the Western European average.
Of course guaranteeing a bond is not the same as owing money yourself.