Investment seems to be more concerned in the business world nowadays. There are not only entrepreneurs and SMEs searching for investments, but also big firms. They (including investors and investees) seek for investments with a similar principal purpose of enlarging capitals. Naturally, investments come along with risks (may be high or low), which are mostly for investors. The measurement of risk level depends on many elements such as types of projects, time, amount of investment, environment factors and so on. Of them, some can be statistically calculated, while some, mostly considered as unexpected factors, cannot. Then again, high risk investments are those without thorough preparation in advance.
There are many tools investors can use to estimate risks and mainly, to calculate effectiveness and potential returns/rates of return of investments/assets. The investment appraisals techniques, in theory, include Payback period, Accounting Rate of Return (ARR), Net Present Value (NPV), Internal Rate of Return (IRR), Equivalent Annual Cost (EAC), Profitability Index and Discounted Cash Flow (DCF). Of those, NPV and DCF are most mentioned as they show more concerns and effects of elements and factors involved in. These two are also used commonly in practice to assess whether projects are worth investing. This has really contributed to number of successful investments since preparation and planning can help investors to forecast potential risks so as to avoid them, and to produce adequate budgets.
On the other hand, there are existing shortcomings which limit the precision of investors’ estimation. Ritter and Kim (1999) outlined three main inadequacies of DCF identified which are difficulty to estimate future cash flows, to select an appropriate discount rate and to choose suitable and excellent proxy peers group average unlevered beta. These are disadvantages of DCF in term of implementation. In another study, NPV and DCF are believed to restraint strategic decisions and good opportunities (Christensen, Kaufman and Shih, 2008). Investors depends too much on the use of assessment tools, so sometimes, they miss potentially lucrative deals or seriously suffer unexpected risks. For example, investors normally hesitate to place money in poor and developing countries’ projects due to their low rate of return, chance of success and, mayhap, high risks, whereas prefer already successful objects. When unexpected crisis occurs, the later has more possibility to suffer loss due to its wider range of business link. We can take 2008’s crisis as practically representative example. And recently, Japanese’s disasters are considered as unexpected matter leading to sudden losses. It is obvious that we cannot foresee what is going to happen, so all estimations are just relative. Investors, as a result, ought to be flexible rather than dependable on calculations.



