What did president hoover do to devise strategies for improving the economy?

The above answer is definitely correct in its details.  I'd just like to emphasize a couple of important ideas about Hoover's response.

He tried to do more to fix the economy than any president had ever done before.  The government had been very hands-off up to that point.He believed the government should not go in debt no matter what.  This limited what he was willing to do.  Please note that economists back then agreed with this idea so it's not like Hoover was just being mean.  In fact, FDR believed the same thing and it's often said that he undermined the New Deal by trying to balance the budget too soon.

So, overall what I want to point out is that Hoover did more than anyone else, and he did what most economists of the time would have said was the right thing to do.  But it didn't work and so he's seen as one of the worst presidents ever, which seems a bit unfair.

He tried to do more to fix the economy more than any president had ever done before.  The government had been very hands-off up to that point.