It was "(D) Passage of antitrust legislation" that was not a result of the Haymarket Square riot of <span>1886, since these protests had to do with creating safer and fairer working environments--such as setting an eight-hour work day. </span>
Well, there are a lot of differences when it comes to individuals and countries. Individuals deal with economics based on microeconomics, and countries deal with it on the base of macroeconomics (the big picture).
However, they both must deal with things like:
Acquiring/providing public goods
Dealing with economic welfare
Trading and interacting with neighbors (locally or internationally)
The Civil War was a time of great social and political upheaval. It was also a time of great technological change. Inventors and military men devised new types of weapons, such as the repeating rifle and the submarine, that forever changed the way that wars were fought. Even more important were the technologies that did not specifically have to do with the war, like the railroad and the telegraph. Innovations like these did not just change the way people fought wars–they also changed the way people lived.