Question

How was Calvin Coolidge’s attitude toward business

Answer 1

"... the chief business of the American people is business." he once said. 

Coolidge followed a laissez-faire economic policy, whereby the government doesn't interfere in the national economy unless absolutely necessary, and even then its actions should be limited to gentle nudges to get the economy back on track rather than large scale intervention. 

So, Coolidge's attitude toward business was 'if it's not broken, don't fix it' - leave business alone to prosper.