Everybody has their own range. That said, when a company demands an answer by the end of the day or the end of the next day, or if you have mentioned you have a

Everybody has their own range. That said, when a company demands an answer by the end of the day or the end of the next day, or if you have mentioned you have another interview coming up and they set it before then, it's an exploding offer and you should reject it. It's entirely reasonable for a company that really needs your skills now because they don't have anyone else who can do that work to ask for an answer in a week. You should consider negotiating a little harder. For any company that already has several people working in the same position, or is expecting you to move any significant distance, you should expect them not to be in a huge hurry.