The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From The Economist:
Find the MBA that suits you best from the worlds top 100 programmes. Rate the importance of over 20 criteria to reflect your professional and personal goals and the Which MBA app will give you a personal ranking, based on data collected from schools and around 20,000 students.FEATURES- Customise the criteria that you want to use to determine your choices of programmes- View The Economists ranking of the worlds top 100 schools - Access profiles of the schools, including application details, careers statistics and programme specialities- Read details about other programmes, such as executive, part-time and distance-learning MBAs- Bookmark the programmes that you are considering into your favourites list- Access the programmes instantly through Google maps and email