How did the Supreme Court decisions promote a stronger national government?

The decisions of the Supreme Court also reflected the nationalism of the postwar period. With John Marshall as chief justice, the Supreme Court greatly expanded its powers, prestige, and independence. When Marshall took office, in the last days of John Adams's administration in 1801, the Court met in the basement of the Capitol and was rarely in session for more than six weeks a year. Since its creation in 1789, the Court had only decided 100 cases.

a.   it resulted in widespread unemployment.