Consumers drive the demand for jobs; investors drive the ability to create them. You need both.
Let's presume I identify a demand for widgets and build a factory. Savings and/or investors are needed to create the first few jobs. After that, consumers step in and purchase the product. If it is popular enough, I have a demand for more labor. I then need investors to help me expand my factory, allowing me to hire more.
What some people fail to consider, however, is the effect in a down economy when companies aren't operating at full capacity. If my clothing store has two registers, but I am only using one, and my employees have more downtime than they need to clean the store, no amount of investment will create a new job in my store. If, however, consumer demand increases, then I can hire another worker to operate the second register without the need for investors.
I haven't done any substantial studies, but I would hypothesize that investor-based strategies would help drive a growing economy, but consumer-based strategies are more likely to bring an economy out of recession.