We study nearly 7,000 retirement accounts during the April 1994-August 1998 period. Several interesting patterns emerge. Most asset allocations are extreme (either 100 percent or zero percent in equities) and there is inertia in asset allocations. Equity allocations are higher for males, married...

We study a new and unique data set of daily aggregate transfers of funds between mutual funds held in 401(k) accounts. We find that 401(k) transfers correlate strongly and positively with contemporaneous daily returns in the corresponding asset class. GMM estimation based on the...

We examine equity portfolio choices of a panel of over four thousand 401(k) investors during the April 1994-August 1998 period. In the majority of participant/year observations all the equity funds available are held; hence, it appears that most participants take full advantage of the...