What causes changes in the level of investment?

Question

yup, same as above....

Answer 1

for the change in investment following things are required                                                                                                            1.Tax breaks, subsidies, low interest loans, grants, lifting of certain restrictions                                                                              2.The thought is that the long term gain is worth more than the short term loss of income

Answer 2

for foreign investments:  well, currency stability is one.  manpower source, low cost of money, tax breaks,  wage levels, etc