Economic real sector is essential for growth and development as its activities persuade progress of economic output. The sector generates better outcomes if it is accompanied with a healthier financial system; thus, advancement of financial sector is a means for the growth of real sector. This study reexamine the relationship between financial and real sectors of Thailand with the volatility analysis of GDP caused by development of financial market. The GARCH Model, Johansen-Juselius (1990) cointegration test, and vector error correction ...