Some observers argue that China’s debt-to-GDP ratio, estimated at close to 250% in 2015, has reached a point that could trigger a systemic collapse soon. This ratio is high by international standard, but not that high as many have feared. It ranks only in the middle of the world debt league, according to Bank for International Settlement’s data, with countries such as Japan, Belgium, Portugal, Ireland, the Netherlands and Greece recording significantly higher debt ratios.
How much is too much?
Does China have too much debt? To assess this situation, let’s go back to the basics. Debt arises when an economy transforms its savings into investment. There are two ways to do that, either through borrowing or through equity financing. If all national savings are transformed into investment via the equity market, the economy incurs no debt. In reality, there is always a portion of national savings being transformed into investment via borrowing either through bank loans or bond issuance. In this case, the economy builds up debt.
In a closed system, given a stable structure of financial intermediation between equity and debt financing, the higher the national savings the higher the level of debt. So debt is bound to arise and there is nothing good or bad about it. Empirical evidence shows that there is a positive relationship between a country’s national savings and debt level (Chart 1). China is high up on the chart due to its high national savings.
However, in an open system, a country can borrow foreign savings from abroad. This means that it can build up an amount of debt larger than its stock of domestic savings by incurring foreign liabilities. Conversely, a country can accumulate foreign assets by lending its savings to foreign borrowers.
If a country lends more to foreigners than it borrows from them, it builds up net foreign assets, and vice versa when it accumulates net foreign liabilities. In China’s case, not only does it have a small foreign debt (less than 15% GDP in early 2016), but it also has a net international investment position (Chart 2); i.e. it is a net creditor to the world.
In principle, a low-saving country can run a large debt by borrowing from abroad, but a high-saving country almost always runs a large debt even it does not have any foreign borrowing. This is apparent in the steady increase in the debt levels in both the Anglo-Saxon and Asian economies over time. China falls in the latter high-savings-high-debt category.Download to read more