The demographics of today’s workforce, employee expectations about retirement and the types of retirement options offered are all in a state of flux, making retirement policy a moving target for those charged with researching and administering pension plans. That was the message at a recent Wharton conference titled “Reinventing the Retirement Paradigm,” hosted by Olivia Mitchell , executive director of The Pension Research Council at Wharton, and Robert L. Clark, professor of business management and economics at North   Carolina State University. This article is the second of two; the first article, published in our last issue, covered retirement policy issues ranging from pension fund management to accounting reform to transparency. This article focuses on pension planning as it relates to employment trends among both younger and older workers.…