I'm doing my thesis but I don't really understand about the model . Can you help me to answer these questions:
1. following the result of the original (on the doc file), should I choose period fixed or cross-section fixed?
2. When I estimate the equation, it says Near Singular matrix. What should I do?
Can you show me the process to estimate this one? cause in the original paper, it just mentions of FEM so I don't know what to do
Here are my data and a doc file with the equation and picture of result of the original.
Thank you so much.