Hi there, i'm still a novice in financial markets, therefore i have the following question. I've noticed that the share price of the same company but in different markets can differ. The question seems to be obvious. What would prevent to buy a share in one market and sell it in a market with a higher price ? I guess it is a tax issue...but is it an issue for all cases ? what about frankfurt and stuttgart for example. Thank you very much for any info !