It is merely a theory that explains how free enterprise works. Banks for example, a very important part of the economy, are left out. Some socities do not accept the circular flow model theory. These socities, therefore, choose another economic system other than capitalism. Socialists and communists see the role of the government in a different light than capitalists do.
The United States Constitution states that the Vice President of the United States is the President of the Senate, despite not being a senator, and that the Senate must choose a president pro tempore.
Joe Biden is the President pro-tempore, the Vice President, and the presiding officer for the senate. He's really more of a figurehead-he only acts if the President were to d â¦ ie, in which case he would take over, or if Senate needed a tie-breaking vote (then he may act as that vote).