The New Market Effect on Return and Volatility of Spanish Sector Indexes
Recently (April 2000), the New Market index began to be computed in the Spanish Stock Exchange as a relevant indicator of the new technological firms’ behavior in the Spanish economy. This paper provides empirical evidence about the relationships between the return and volatility of Spanish sector indexes and the New Market index volatility. Using GARCH methodology, empirical results reveal a positive significant impact on the financial, industrial and utilities sector volatility, that is, high volatility in New Market tend to increase volatility in the other sectors. On the other hand, only statistical effect is detected on return of industrial sector, suggesting that only this sector require a risk premium when shocks in the technological sector increase the global market risk.
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