# utility from providing public good as explained in Hindriks textbook

I think I understood the highlighted part: basically, by increasing $$g^1$$ my utility increases because more public good is being provided but at the same time it decreases because I have less money to buy private good $$x^1$$ - so the effect of increasing $$g^1$$ is ambiguous.

My question about highlighted part is whether I can somehow see that on a graph below? As it would seem like when I set $$g^2$$ to be constant and then increase in $$g^1$$ would only cause my utility to decrease. Is there a way to represent the "initial increase in utility"?