Topic: The impact of corporate governance on the firm performance
Methodology: Panel Analysis
I want to test this hypothesis below;
H1: The small Board size has a significant impact on firm performance.
H2: The proportion of female board directors has a significant impact on firm performance.
H3: The number of Audit Committee has a significant impact on firm performance
But now I have the simple lineage regression model below:
• Gross Profit Margin = βo + β1 (Board Size) + β2 (Board Diversity) + β3 (Audit Committee)
• ROA = βo + β1 (Board Size) + β2 (Board Diversity) + β3 (Audit Committee)
• ROE = βo + β1 (Board Size) + β2 (Board Diversity) + β3 (Audit Committee)
• ROI = βo + β1 (Board Size) + β2 (Board Diversity) + β3 (Audit Committee)

What I need is the analysis the data from the 100 companies by using Panel analysis: regression model to test the above hypothesizes.