_{Dear all,}

_{I am learning Stata and trying to figure out how to use the xtpmg command with CCE Mean Group (CCEMG) estimator.}

_{Recently I read the following paper:}

Benos N., and Karagiannis S., “Inequality and Growth in the United States: Why Physical and Human Capital Matter”, Economic Inquiry, Vol. 56, No. 1, (2018), 572-619.

_{This paper runs shor-run and long-run estimates to investigates the relationship between economic growth, inequality and capital by using CCE Mean Group (CCEMG) estimator.}

_{The model is as below:}

y

_{it}=a

_{1,i}y

_{it-1}+a

_{2,i}ineq

_{it}+a

_{3,i}(k

_{i}

_{t}/h

_{it})ineq

_{it}+a

_{4}(k

_{it}/h

_{it})+u

_{ir, where y, ineq, k and h are panel data variables. The lag length is 4.}

_{I would like to know all the syntax used to estimate this model, but after reading the Stata help files and some articles regarding how to apply the xtpmg command, I'm still not sure what the syntax should be like.}

_{Could anyone kindly let me know exactly each syntax I can use in this example to get the results or give some suggestions? I am using Stata 15 on Mac.}

_{Thanks in advance!}

_{P.S. The results (CCEMG GMM Long-Run and Short-Run Estimates, along with the Dynamic CCEMG Estimates) in the paper are as below. The syntax I want don't necessarily generate the same type of graphs as below. I put them here just to give an idea that what kind of parameters I'd like to get.}

## Comment