At Columbia Business School, all students must pledge to an honor code: “As a lifelong member of the Columbia Business School community, I adhere to the principles of truth, integrity, and respect. I will not lie, cheat, steal, or tolerate those who do.” The code has been in place for about three years and came about after discussions between students and faculty.

In the post-Enron and post-Madoff era, the issue of ethics and corporate social responsibility has taken on greater urgency among students about to graduate. While this might easily be dismissed as a passing fancy  or simply a defensive reaction to the current business environment  business school professors say that is not the case. Rather, they say, they are seeing a generational shift away from viewing an M.B.A. as simply an on-ramp to the road to riches.

Those graduating today, they say, are far more concerned about how corporations affect the community, the lives of its workers and the environment. And business schools are responding with more courses, new centers specializing in business ethics and, in the case of Harvard, student-lead efforts to bring about a professional code of conduct for M.B.A.’s, not unlike oaths that are taken by lawyers and doctors.

“I don’t see this as something that will fade away,” said Diana C. Robertson, a professor of business ethics at the Wharton School of the University of Pennsylvania. “It’s coming from the students. I don’t know that we’ve seen such a surge in this activism since the 1960s. This activism is different, but, like that time, it is student-driven.”

A decade ago, Wharton had one or two professors who taught a required ethics class. Today there are seven teaching an array of ethics classes that Ms. Robertson said were among the most popular at the school. Since 1997, it has had the Zicklin Center for Business Ethics Research. In addition, over the last five years, students have formed clubs around the issues of ethics that sponsor conferences, work on microfinance projects in Philadelphia or engage in social impact consulting.