When countries become more democratic, new opportunities arise for individuals and groups to participate in politics and influence the making of policy. But democratization does not ensure better representation for everyone, and indeed some sectors of society are ill-equipped to take advantage of these new opportunities. Small industry in Mexico, Kenneth Shadlen shows, is an excellent example of a sector whose representation decreased during democratizaton. Shadlen uses extensive interviews and archival research to provide new evidence and insights into the difficult challenges of interest aggregation and representation for small industry. He conducted interviews with a wide range of owners and managers of small firms, state and party officials, and leaders of business associations and civil society organizations. He also did research at the National Archives in Mexico City and in the archives of the most important business organizations for small industry in the post-World War II period.