It's pretty much as it sounds. Planned investment is how much a person/company plans to invest over a period of time (usually a year) and the actual investment is the amount what they did invest. For...
if you're a baker, then a new oven, if you are a trainer then new gym equipment
planned investment is an injection because it is spending on capital goods that businesses plan to make regardless of their current level of income
It is more risky. It is long term and irreversible. It involves large amount of money. Jz guess.....