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How to optimize this dynamical system? Needing guidelines

Economics Asked on November 10, 2021

I’m trying to solve a growth model, where the author indicates is a dynamical system.
I want to ask if someone would help me with some guidelines of how to optimize this, I’ve been trying to solve it throw lagrangian but, as it is a dynamical system is not the right method.
The model is a growth model where individuals choice consumption, number of children $$(n_t)$$ ,quality of them in terms of education $$(e_{t+1})$$ and intergenerational transfers $$(s_{t+1})$$. Also it follows that human capital $$(h_{t+1})$$ follows the function $$h_{t+1}=h(e_{t+1})$$.

The optimization problem is to maximize the utility (3) subject to (5) knowing that $$ h_{t+1}=h(e_{t+1}) $$ This is a project where I’m learning on the way and by myself without any guidance, so I will be very thankfull for any help.

Here I leave the functions. The paper is ‘Fertility clubs and economic growth’ of Ahituv and Moav (2005) and you could find the model in ‘Cheap children and the persistence of poverty’ Moav (2001)
It does not specify anything about the time of maximization, I tried to solve it as an OLG too but I did not arrive to any result of showed up.
Also it does not specify about any particular t, so I guess I should get a time path.

Thanks!!

Production function

Utility Function

Budget constraint

Optimisation respect to consumption

Ooptimisation respect to intergenerational transfers st+1

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