pool estimation

[Mito]

Can any1 help me to interpret the result of pool estimation

Variable Coefficient Std. Error t-Statistic Prob.

C -4.609829 0.230771 -19.97580 0.0000
LY? 0.914534 0.017675 51.74170 0.0000
LEH? -0.993586 0.020496 -48.47720 0.0000
Random Effects (Cross)
1--C -0.592261
2--C 0.841848
3--C -0.760881

Dependent variable is real wage, ly is output and leh is working hours. My data contains data of many countries and I am asked to do pool estimation but I dont know how to interpret coefficients of LY and LEH and why we need to estimate all countries' equation simultaneously.