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Independent of knowing your market value, you should also be aware that companies hire negotiation experts (recruiters/HR) to optimize their hiring. Negotiating is a skill that people spend entire careers developing and a candidate will never be as experienced as a recruiter will be. Rora aims to solve this and has advised over 150 PhDs, Postdocs, & Professionals how to negotiate better job offers. Many of the offers on aipaygrad.es are a result of clients who were advised by Rora.
If you want to learn about how companies are negotiating experts and how to protect yourself, Rora has provided education here.
If you want expert advice on your personal offer negotiation situation or job search, you can schedule a free consultation with Rora here.