[nsfyn55]

Sorry friend this is nonsense. One of the key pieces of negotiation is access to information. Organizations and managers respond well to rational appeals like "so and so has the same experience and does the same job but earns 10% more" or "I have an outstanding offer for X I am currently at (X-$10000), I know your position(BATNA) to imply a cost of (X-$1000) I think its reasonable to settle here for (X-$5000)"

The key is having information specifically to formulate your company's BATNA. The notion that salary sharing is bad for the employee is hogwash from unfair labor practices developed over decades.

Would you buy a car from a dealership if the dealer told you "you shouldn't comparison shop it will only make you resentful"? Yet we are willing to accept that claptrap from a company. Not in this lifetime.