Alright, I'm generally not a huge fan of clicker games, but I do see the appeal. A business clicker game is an awesome idea, but you need to realize why clicker games are as popular as they are.
In itself, a clicker game is extremely boring. You click the screen and that's it. The reason why people find them fun is because of the thrill of progress. You start out with nothing, getting 1 item per click, and eventually end up with more passive items per second than a whole hour of clicking would give. To enhance this feeling we use visual feedback. Take a look at the original cookie clicker for example. Every time you click, a cookie appears in the background. As you get a lot of passive cookie generation there are tons of cookies in the background. In your game all I have is a tiny, tiny text saying "+xxxx per second". You could make dollar bills fly around, gold bars appear, etc. Your icons look great so I'm sure you have the artistic skill to do so.
Same goes with the businesses. Now, I understand this is just made in 48 hours, but how awesome would it be if you saw hotels appear in the background when you bought them? Instead of the white background, have a simple image of an empty city (just grassland, a few houses and a sky), and each time you buy a business you place a sprite on top of the city sprite. As you get more and more the city gets filled with stuff. That would be satisfying and entertaining!
Another thing, I feel like your layout is a bit weird. It's not very intuitive that I'm supposed to click on that one specific icon out of 8 similar-looking icons. Make the click icon bigger and place it in the middle.
Here's a super quick sketch I put together with lots of stolen art: clickerSketch.jpg
So anyway, if you change the game a little I think it could be a fun little web game. Good luck, and good luck next game jam! :)