An unfolding scandal was targeting the NYSE's market makers, known as specialists, for misusing their status to wrongfully profit off investor orders.

FORBES

Then follow up with customers by emailing them regular status updates so they know you haven't forgotten their orders, Mr. Dixon adds.

WSJ: Can You Handle a Sudden Surge in Sales at Your Business?

Among examples of New York City's strategies are the executive orders Mayor Michael Bloomberg signed in 2003 that keep city employees from inquiring about a person's immigration status unless required.

WSJ: NYC offers other cities immigrant outreach ideas