National healthcare wherever is implemented squeezes prices and profits of the private businesses involved in the system.

Obamacare in the U.S. will be no different.  For investors in healthcare companies, it is a good idea to begin to think through which companies will be most severely negatively impacted or least impacted, to potentially make  deletions or substitutions.

One dimension of healthcare companies is research and development, which has been an important driver of future growth and value for many companies in the biotech, pharmaceutical and medical devices industries.

To the extent that the rewards of research and development are reduced by price pressures due to national healthcare, research and development will decrease, and therefore growth in sales, profits and value of those private companies will slow.

One way to begin the process of determining the sensitivity of biotech, pharmaceutical and medical device companies to a switch from a private to a public U.S. healthcare