The Effects of the Corporate Governance Quality of Companies on the Price Performance: A New Generation of Panel Data Analysis on the Companies Listed in the Borsa İstanbul Corporate Governance Index

In this study; The effects of corporate governance quality assessment notes (corporate governance rating ) of firms traded on BorsaIstanbul on the stock prices of firms were investigated with the help of the New Generation Panel Data Analysis methods of 27 firmsusing the annual data of 2012-2018 period. The presence of cross-sectional dependence among firms included in the analysis; Breuschand Pagan (1980) were tested by LM test, Pesaran (2004) LM test, Pesaran (2004) CD test and Baltagi, Feng and Kao (2012) LMBCtest and it was found that there was a horizontal cross-sectional dependence between firms. Stability of series; Pesaran (2007) wasexamined with CADF panel unit root test and all series were determined as I (0). The coefficients in the models were estimated by usingWesterlund (2007) OLSAdj method and when the corporate governance quality of the firms increased by 1 unit, it was determined thatthe stock prices would increase by TL 1.13.Causality relations between series; Dumitrescu and Hurlin (2012) method was examined and one-way causality relationships werefound between firms' corporate governance quality and share prices.

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