Overall, I have Return on Asset as a dependent variable. As independent variables I have chosen Leverage, credit risk, liquidity risk, size effect, gdp, inflation, interest rate.

What is more my sample size is as follows: 24 banks, for 10 years 2004-2014. I am doing unbalanced data, as I have some data missed for some banks.

I am adopting panel model with fixed effect from each bank.

The problem is I don't know how to make fixed effect model in spss.

I have tried linear mixed model and general linear model. My results are not right I guess.

I hope for your help!