In its heyday, it boasted nearly two million people, the world's premier automobile industry, the world's most popular music (Motown), and perhaps the country's most prosperous black middle class. But Detroit's population is down 50 percent, as are…

Paul Solman answers questions from NewsHour viewers and web users on business and economic news most days on his Making Sen$e page. Here's Monday's query: Name: Sharon McDonnell Question: I am so very sorry we do not have a…