How to increase your capital value and grow purchasing power

During low real interest rate environment in the economy the tendency is to spend more money and save less.  Critics may say if real interest rates on bank deposits are low and not attractive people can start own business, but reality is that not many people have desire to start own business.  If they save with low rate environment, like one in the developed world now, they can loose real money through losing purchasing power or otherwise negative interest rates - if they deposit in the bank (inflation > interest rates).  So, people start spending all wage, nearly nothing is saved.   Sometimes they may even require to incrase purchases, in this case they need to buy on credit, borrow from bank and purchase in that way, which creates additional expense (interest cost).  In that environment corporations are growing, because people spending more and more, and the same time people are saving less and less and even borrowing to spend, they actually becoming poorer, all money is went to companies.  If the wage growth is low than inflation, they have less and less purchasing power and eventually they stop paying loans, because not enough wage, this is one of the reason why when crisis occur.  During crisis, like developed world had in 2008 -2009, demand is decreasing, companies start shrinking employees (because their revenue decreased on lower demand, but fixed costs like wages are the same), they firing them.  Now, this people do not have jobs and may have loans still to pay.  This is the one of the example why the gap between poor and rich is widening.   What adds to this widening gap is also that, some countries do not have wage controls and have poor social security system, also other regulation are poor in the country, like financial system regulation.  In that kind of environment rich is becoming richer and poor is becoming poorer.   When crisis occurs, central banks start implementing stimulative polity for the economy, prices start to raise, this process may add to widening gap more, rich becomes richer, because they have already invested in assets like company stocks.  If stimulative policy works, companies start thriving, because optimism in the market returns and expectation is better for the economy. 
It is very important to have investment portfolio in properly analyzed and well chosen company stocks (it is very important to know which company stocks to buy, because if you can not figure out what to buy than do not do that, because you may loose you money), this is one of the source to make grow capital value over time.