Your Iranian counterpart may display emotion such as anger or being flustered, or even leave the meeting, to try and persuade you to change your position.
Be mindful about letting your Iranian counterpart know about any personal time deadlines as it may be used against you in away to persuade you to change your position.
Foreigners should expect to negotiate when doing business. Also prices in the general stores are not that reliable or fixed that is why you have to negotiate. Televisions and other gadgets are usually second hand so you do not want to have to pay too much for them. Store owners are very proud of their goods and they will brag about them to up the price. You’ll find that every store owner will let you know that they carry the best commodities in town. However if you do not wish to bargain hunt and negotiate prices, most cities to have elite shopping malls where the prices are fixed and the clothes are hand made and of the highest quality. This includes jewelry, furniture etc.