Noteworthy Medco and Repligen face the future

Medco Research Inc. shareholders who opposed the terms of the proposed merger with Repligen Corp. got their wish, with the deal foundering last week after the companies couldn't reach a new deal.

The issue now is whether MRE shareholders have traded long-term growth for short-term profits. For RGEN shareholders, the issue is how the company will continue to restructure for survival.