Player progression is central to the MMORPG experience, but that progression is not always the same across the genre. Emilien ...

Here’s another way to view the differences between vertical and horizontal development: Consider your mobile device. The apps on the device are programs you choose to install and use.

Horizontal development is still necessary ... Lead” frontline leader program is an excellent example of what vertical development looks like in action. In many ways, the program is structured ...

The driving principle behind vertical equity is that those who have the ability to pay more taxes should contribute more than those who are not. This can be contrasted with horizontal equity ...