Key Equations:
Production function:
\(Y_i = K_i ^\alpha (A_i H_i)^{1 - \alpha}\)
Dynamics are the same as Solow. It may be interesting to compare estimations for growth accounting (the coefficient on the different variables across countries):  
\(\ln(\frac{Y_t}{L_i}) = \frac{\alpha}{1 - \alpha} \ln (\frac{K_i}{Y_i}) + \ln (\frac{H_i}{L_i}) + \ln A_i\)

Endogenous Growth Models (R&D)