4.1 After periodic episodes of speculative attack in 1996, the Thai baht came under downward pressure again in January-February 1997, as currency traders questioned more about the sustainability of the U.S. dollar peg in the presence of a large current account deficit and erosion of external competitiveness due to the dollar’s continual rise against the yen and growing excess (Thai minus U.S.) inflation. Though the authorities were at that time able to defend the baht through spot and forward intervention and temporary rise in interest rates, market traders viewed the measures as inadequate, especially when fundamental weaknesses in the financial sector were not remedied and equity prices continued sliding. Meanwhile, there was little market nervousness in neighboring ASEAN-4 countries, which were less affected by the export slowdown in 1996 and encountered far smaller current account deficits. However, as the situation in Thailand deteriorated worries that financial sectors in these countries might also be exposed to property gluts contributed to a downturn in equity prices, particularly in Malaysia and the Philippines.
4.2 Severe pressures on the Thai baht reemerged in early May 1997, prompting the central bank to intervene heavily in the spot and forward markets, before moving on May 15 to introduce capital and exchange controls, aimed at segmenting the onshore and offshore markets, and allow interest rates to rise. However, these measures failed to restore confidence in the currency, and strong pressures continued in the second half of May and June. On this occasion, the neighboring ASEAN-4 countries suffered limited spillover effects, but these pressures abated fairly quickly as the authorities intervened in their exchange markets, raised interest rates, and, in the case of Malaysia, introduced limits on swaps by nonresidents not related to commercial transactions.
4.3 Underlying these currency attacks was a tightening in global financial conditions resulting from the sudden rise in Japanese bond yields and the sharp rebound of yen, which reduced the attractiveness of borrowing in Japan to finance investment in high-yielding markets elsewhere,, including Thailand which was heavily reliant on short-term capital inflows. International investor–commercial banks, investment banks, and hedge fund–played a role alongside domestic investors in taking short positions against the baht, which they viewed as providing a one-way bet given the exchange rate peg, weak fundamentals, and relatively low funding costs.
4.4 Large and continual capital outflows made it inevitable of Thailand to abandon its exchange rate peg against the U.S. dollar-dominated basket on July 2 and allow the baht to float. After dropping initially by 10%, the baht continued to falter because of intensified worries about politics, an economic package to support the new exchange regime, and weaknesses in the financial system. The fall of the baht value immediately raised doubts about the viability of exchange rate arrangements in neighboring countries.
4.5 The initial victim was the Philippines, where the authorities had also maintained an exchange rate peg to the U.S. dollar. After trying briefly to defend the peg through interest rate hikes and intervention, the authorities floated the peso on July 11, and subsequently imposed restrictions on the sale of no deliverable forward contracts to nonresidents in an attempt to limit speculation against the peso. Spillover effects spread quickly to Malaysia, where the authorities opted to allow the ringgit to depreciate rather than raise interest rates, and also to Indonesia, where on July 21 the rupiah fell sharply within the official intervention band. Subsequent measures to tighten liquidity condition in Indonesia failed to stem the growing exchange market pressures, and the authorities allowed the rupiah to float on August 14. At the time of the rupiah’s float, the Thai baht weakened by a cumulative 18% against the U.S. dollar, compared with more moderate falls of other ASEAN-4 currencies by around 10%
4.6 The situation, however, worsened markedly in September and October 1997, reflecting concerns about the effects of currency depreciation and higher domestic interest rates on highly leveraged corporate and financial sector balance sheets, and about the authorities’ commitment to implement policies needed to restore exchange rate stability. The imposition of controls on capital outflows during the crisis further undermined investor confidence. Although hedge funds played a role in the crisis of the Thai baht, they were not a major driving force behind the downward pressures on ASEAN currencies in the third quarter of 1997. Instead, domestic investors, debtors seeking to hedge their foreign currency exposures, and international commercial as well as investment banks played important roles in paring down domestic currencies. By mid-October, the cumulative declines of currency value versus the U.S. dollar exceeded 30 % for Indonesia and Thailand and 20% for Malaysia and the Philippines.
4.7 As the Southeast Asian crisis deepened, spillover effects began to spread to other countries in Asia, reflecting the same concerns (export competitiveness and soundness of financial system). The Singapore dollar and New Taiwan dollar weakened moderately in July, and the Hong Kong dollar came under temporary attack in early August. Contagion of financial crisis could easily occur in other parts of the world because of three primary reasons. First, financial markets around the world are linked up with each other to a large degree by technological advancement. Second, owners of surplus funds ordinarily diversify their investments to different countries or continents in order to maximize returns while limiting risks. Third, financial crisis in one country or continent typically has adverse psychological impact upon investor confidence in other countries or continents. Therefore, globalization of financial crises, as a result of the one in Southeast Asia, could come as no surprise.
4.8 Table 3 demonstrates that the 1997 reduction in developing countries’ net private capital inflows were entirely due to Asia. Within Asia, Thailand was not the only country which saw a drastic plunge of net capital inflows. The Philippines, Indonesia, and Malaysia were in a similar plight.