Why are terms of investments or acquisitions often not disclosed?

Here are some reasons why: http://www.linkedin.com/e/-86igng-hh88okw6-47/nua/s1445610994/http%3A%2F%2Fgoo%2Egl%2FN7U7i/XCnT/5744416305931382784/EML_nus_share-F1-2/?hs=false&tok=18PjV4Wwjgl5M1&trackinfo=updateId%2C5744416305931382784

In our part of the world, a few more reasons for not disclosing the terms of a sale include:

1. Cultural preference for keeping one's cards close to one's chest, not just in business but in life in general. The nail that sticks out, etc
2. A tendency for many entrepreneurs to see selling out as, well, selling out
3. Not wanting the neighbours, not to mention the taxman, to be aware of the details

Data really is scarce on the ground in Asia, much more so than in the US. The consequence of this, of course, is that people not in the know end up making poor estimates and assumptions, some downright stupid. When those assumptions start to spread in the market, it gets very hard for the original parties to correct the now prevalent misapprehensions.