Massachusetts /ˌmæsəˈtʃuːsᵻts/ massuh-CHOO-sits; officially the Commonwealth of Massachusetts, is the most populous state in the New England part of the northeastern region of the United States. It is bordered by the Atlantic Ocean to the east, the states of Connecticut and Rhode Island to the south, New Hampshire and Vermont to the north, and New York to the west. The capital of Massachusetts and the most populous city in New England is Boston. Over 80% of Massachusetts' population lives in the Greater Boston metro area, a region influential to American history and industry. Boston-Logan International Airport is New England's busiest airport. Originally dependent on agriculture, fishing and trade, Massachusetts was transformed into a manufacturing center during the Industrial Revolution. During the 20th century, Massachusetts' economy shifted from manufacturing to services. Modern Massachusetts is a global leader in biotechnology, higher education, and maritime trade.