I am a fledgling computer science researcher working in intersection of economics and computation. Please excuse me if this question seems out of place to the administrator.
I am currently studying different pricing models and studying the "optimal" way or price to sell items. I have noticed that on Google Play there are movies which one could rent or buy. Also, for movies for similar popularity I noticed that there is often a huge difference in their price. (about 10 euros). Conventionally, one looks at the valuation distribution for an item. However, that won't explain this difference in cost. There may be issues of purchasing copyrights too. However, more generally, how do companies like Google price these digital items? Do they update these prices regularly based on sale information? Is there any prior work about how can one go about doing this?
I am just looking for directions so any help is greatly appreciated.