Suppose the nation were in a recession with many people unemployed (out of work). why would economists be happy to see firms begins to but more capital goods

I think it was a typo and you meant "buy" not "but"

and they would be happy because this means that the company is planning to increase the production, which would likely lead to a renewed or increased empowerment of people.
 

GUYS, PLEASE DON'T GO ON ANY SITE ᵇʳᵃⁱⁿˡʸ.ᵗᵒᵈᵃʸ THEY ARE BOTS CREATING ACCOUNTS, AND THEY ARE GETTING YOU ATTENTION SO YOU GO TO THAT SITE, IF U GO IN THAT SITE YOU WILL NOT LIKE WHAT YOU ARE GOING TO SEE, SO PLEASE BE CAREFUL, AND ALSO THEY HACK PEOPLE ACC. ONE PERSON LOST ALREADY HIS BANK ACCOUNT BECAUSE OF ᵇʳᵃⁱⁿˡʸ.ᵗᵒᵈᵃʸ, COPY THIS AND PASTE THIS ON OTHER QUESTIONS SO PEOPLE GET AWARE OF WHAT IS GOING ON!