Explain what is meant by the term "market revolution." What were its causes? Describe how the "market revolution" shaped Americans' perceptions and actions in the Jacksonian era. In what ways did the market seem liberating? In what ways did it seem threatening? What was the relationship between the market opportunity and political participation in Jacksonian society? How might Henry David Thoreau, as he appears in Walden, be said to embody typically Jacksonian anxieties about the relation ship between freedom and the market?