By Linda Lim

AFTER recovering from the Asian financial crisis of 1997-98, East Asian economies began running consistently large current account surpluses.
The accumulated foreign exchange reserves served as a buffer against potential speculative attacks on their now-floating currencies, and allowed management of those currencies to reduce volatility and maintain the international competitiveness of their heavily export-oriented economies.
Because the United States was the largest final destination market for their exports and home of the world's reserve currency, a large proportion of these Asian reserves were invested in US dollar assets - especially US Treasuries but also corporate assets via Asia's sovereign wealth funds.
The resultant capital inflow into the US and global markets, together with the US Federal Reserve's easy money policy, kept US and world interest rates low, funding ever-increasing US and some European budget deficits and household debt.
Cheap money fuelled 'financial innovations' such as sub-prime mortgages and risky assets, which led to a crisis.
The capital flow from Asia (and other commodity-exporting economies) also propped up the US dollar and depressed Asian currencies, maintaining Asian export competitiveness, current account surpluses, and reserve accumulations, while expanding US current account deficits and national indebtedness.
US Fed chairman Ben Bernanke identified a 'global savings glut' as the cause of these global macroeconomic imbalances. With only a few exceptions, excess public sector savings in the form of persistent government budget surpluses are not the source of the high savings in East Asia, leading to the observed current account surpluses.
Japan notably runs large government budget deficits and has a huge national debt, but still exports more than it imports, due to high savings in the private sector. The basic question is: Why do East Asians save so much, particularly at low levels of income?
Demographic profile is a major reason. With the bulk of the population in the prime working-age years, and high rates of female labour force participation, dependency ratios have been relatively low, leading to high household savings and low shares of consumption in gross domestic product (GDP).
With few descendants to support them in retirement (and high life expectancy in many Asian countries), as well as weak or non-existent social safety nets, there is a high rate of precautionary savings not only for retirement, but also for health care and children's education.
Some economies - Singapore, Malaysia, Hong Kong - have forced-saving schemes or national 'provident funds' with high rates of mandatory contributions out of earned income.
Some researchers have also identified the high cost of residential property - as measured by ratios of housing prices to years of annual income that are much higher than international norms at given per capita income levels - as a contributing factor to high savings and low current consumption rates.
Underdeveloped and inefficient financial sectors in many Asian countries cause low returns for savers, requiring more savings to yield the income required for retirement.
Widening income inequality, with China, Hong Kong and Singapore now at the US levels of the Gini coefficient, also concentrates income among high-income earners who tend to be high savers.
Finally, high corporate savings are a major contributor to high aggregate national savings. In Asia, these result from a number of structural features of the corporate sector. Large, low-income China and small, high-income Singapore represent the two extreme cases, with the lowest shares of labour (wages) in national income, and consumption ratios at or below only 40 per cent of GDP, versus the Asian average of 55 per cent.
Moreover, in each case, these shares have steadily declined over the past two decades. Malaysia ranks a close third.
Both China and Singapore are characterised by high and rising shares in GDP of state-owned enterprises or government-linked corporations, and of multinational corporations - neither of which have built-in incentives to distribute corporate income where it is produced, preferring reinvestment for growth.
Multinationals are often beneficiaries of host country tax breaks or other investment incentives that reduce local income distribution, and are obligated to remit income overseas to their predominantly home-country shareholders.
Elsewhere, the private sector is dominated by closely held public companies or family-owned conglomerates, both of which have little shareholder pressure or motivation to distribute rather than accumulate and reinvest corporate income for growth and expanded market share.
Most of the causes of high Asian household and corporate savings are structural rather than policy-driven, and cannot be easily or quickly unwound by government policy.
Demographics obviously take a long time to change but have an impact when they do. As a population ages and large cohorts retire, they dissave.
Financial sector reform should help rebalancing by increasing the efficiency and diversity of financial instruments, so that less savings are required to earn a target return for the investor.
After the Asian financial crisis, this did occur in some countries, most notably South Korea. Elsewhere, banks remained dominant, becoming more conservative in their lending practices after the Asian financial crisis. Furthermore, the experience of the crisis made China reluctant to pursue capital account liberalisation.
Still, demographics and financial sector reform are probably responsible for the increased share of private consumption in GDP between 1990 and 2008 in the largely domestic private sector economies of Japan (rising from 53.2 per cent to 57.8 per cent), Taiwan (54.6 per cent to 61.4 per cent), South Korea (50.9 per cent to 54.5 per cent) and Hong Kong (57.1 per cent to 60.5 per cent).
Consumption also increased (41.6 per cent to 45.2 per cent) but remained low in Malaysia over this period.
The difference between Hong Kong and Singapore is striking, with private consumption in the latter declining from 46.3 per cent of GDP in 1990 to 38.6 per cent in 2007. This is surpassed only by the decline in China from 50.6 per cent to 36.4 per cent.
Besides the practice of running surplus government budgets in Singapore compared with Hong Kong, the decline in the wage and consumption share is probably due to the rising share of foreign labour - which, like multinationals, has an expected higher propensity to save its income for repatriation rather than domestic consumption.
The lack of a social safety net might partly explain high savings in relatively low-income China, but cannot explain continued high savings in high-income Singapore and Japan, where safety nets are adequate and financial markets relatively well-developed.
What about currency appreciation? In theory, this should reduce the relative share of export to domestic market production, while increasing the share of imports for consumption, thus shrinking current account surpluses and foreign exchange reserve accumulation.
However, this has not happened despite the near-continuous appreciation of Asian currencies against the US dollar over the last three decades, particularly in Japan and Singapore.
The last two decades in East Asia have seen savings' high share of GDP decline in the 'more democratic' economies of Japan, South Korea and Taiwan, but also in non-democratic Hong Kong. This is probably mostly due to demographic reasons largely beyond the control of government policy, with the exception of Singapore's migrant labour policy.
But the inevitable acceleration of ageing and retirement will eventually lead to lower savings and thus to macroeconomic rebalancing away from export production and towards domestic consumption.
Financial sector liberalisation has helped rebalancing, but is still incomplete and likely to continue being retarded by a combination of post-Asian financial crisis and post-global crisis risk aversion and ideological scepticism, nationalist objections, and resistance by domestic financial institutions to increased competition.
Witness, for example, Japan's backtracking from the proposed privatisation of its postal savings institution, South Korea's legal attacks on foreign transactions in its financial sector, and the continued dominance and even expansion of China's state-owned banks.
There is no evidence from East Asia to date that expanding social safety nets will significantly reduce savings, given that they have not done so in Japan and Singapore. There may also be governmental hesitation to do so, given ageing populations and the recent negative demonstration effect of fiscally unsustainable safety nets in Europe.
Corporate restructuring necessary to reduce high corporate savings rates is likely to prove most politically intractable, requiring governments to relinquish state control of economic resources and activity.
On the other hand, the experience of the global crisis and international pressure to rebalance to prevent further crises provide a political stimulus and awareness of the need for multilateral collective action as well as national rebalancing.
The writer, a Singaporean, is professor of strategy at the University of Michigan's Ross School of Business. This is an edited excerpt of an article that appeared in Rebalancing The Global Economy: A Primer For Policymaking, edited by Stijn Claessens, Simon Evenett and Bernard Hoekman.
Source - The Straits Times (http://www.straitstimes.com/Review/Others/STIStory_555488.html)