We’re living in an era of growing corporate social responsibility (CSR), marked by more and more transnational corporations — from Nike to Starbucks to BP — going above and beyond what is legally required of them in terms of ethical social and environmental behavior.

After the deregulation of the Reagan and Thatcher eras, corporations did not become ethically focused overnight. So how can we account for this?

What I’ve found is that there’s been a shift in corporations’s mindset about the relation between high ethical standards and the bottom line, which might best be understood as “enlightened self-interest.”

Corporations now see that a narrow understanding of self-interest is going to hurt them in the long run. Thanks to globalization, corporations have had to make significant ethical decisions. For example, when expanding into regions of the world where there is little corporate governance legislation (or where it’s not implemented), U.S. corporations face the question: “Should we operate according to U.S. standards, or should we take advantage of the fact that this country’s standards are lower than ours?”

Corporations have learned that operating according to the bare-minimum ethical standard does not serve them well in terms of both public image and bottom line. Quite a few corporations had to contend with consumer backlash, boycotts and significant declines in sales thanks to NGOs who called attention to subpar practices relating to labor and the environment.

The capital markets have also provided incentives for corporations to behave responsibly. Roughly 10 percent of all professionally managed funds are explicitly designated as socially responsible investment funds with prominent environmental, social or ethical components — and this does not include the many other funds, such as University endowments, that also take these aspects seriously. It is therefore reasonable to say that approximately 25 percent of all professionally managed money has some socially responsible component attached to it.

The bottom line is that companies have learned that abiding by a narrow understanding of self-interest is going to hurt them in the long run. And we’ve seen evidence of how ethical behavior is good for the health of organizations of all sizes, across all industries — particularly those that sell directly to consumers. Risk reduction, lower employee turnover, cost savings, increased profits and stability in the stock market are just some of the benefits companies have experienced by taking CSR seriously.

It’s becoming clear to both corporations and their consumers that we all affect one another, and in some ways, we all depend on one another.