There is a broad consensus that Congress must act to stave off deeper turmoil on Wall Street. Irrespective of the final agreement yet to be reached, there are several principles that must be part of a broader reform effort that begins this week and continues in the coming months.

This is not just a financial crisis; it's an economic crisis. Therefore, the solutions we pursue cannot simply stabilize the markets. We must also deal with the interconnected economic challenges that set the stage for this crisis -- and reverse the...