Is a Japanese yen a safe haven? Relationship between Japanese currency and financial market uncertainty
Japan's low-interest rates made the country's currency the primary funding currency in carry trade speculative strategies. Investors' activity in carry trade strategies has an enormous impact on the foreign exchange market volatility. A large inflow of capital to countries with higher interest rates contributes to their currency appreciation, and, in turn, a large outflow of capital from countries with a low-interest rate leads to a significant depreciation of their currency. However, in times of crisis and high uncertainty in the financial markets, investors massively withdraw from the carry trade. They sell financial assets purchased in a country with higher interest rates and then repay loans taken in a country with low-interest rates. A sudden increase in the supply of a country's currency with higher interest rates leads to its depreciation. On the other hand, the rise in demand for a country's currency with low-interest rates leads to its appreciation. The Japanese yen is one of the most popular funding currency in the carry trade and thus tends to appreciate during crisis periods. The paper aims to investigate the relationship between Japanese yen value and financial market uncertainty measured by the Volatility Index VIX and St. Louis FED Financial Stress Index. Based on the component generalized autoregressive conditional heteroscedasticity model CGARCH with asymmetric threshold term, it has been shown that the increase in financial markets uncertainty contributes to significant appreciation of the Japanese yen against the US dollar. It implies that the Japanese currency is an example of a safe-haven currency and can be applied to hedge financial stress for global equity investors.