In other countries, productivity has grown. In rich countries, GDP soared mainly because of the increase in productivity. The poorest countries in the world are typically with a low productivity increase. So far, there is a marked inter-relationship between increase productivity and the rise of GDP at all levels: country-wide, companies, organizational groups, even down to the individual himself. The most convenient and effective measure on how to start initiatives with the end result in mind is to initially formulate a working personal mission statement. Such a statement would have a person set goals and formulate ways on how such targets would be attained. Such is a usual activity of highly organized people. Mobile phones Today, mobile phones are now capable of playing a big role in unified communications because you can use them to retrieve calls, exchange information, and being able to access the web and IM programs. Google and other web services With Google Voice, it is easy to archive and retrieve information from voice mail messages. To increase productivity, it is best never to stop learning because this opens up to new worlds of possibilities that are waiting to be explored. If one continues learning through read or by trying different things, he or she can gain more confidence to do things and start with new projects. Also, when one continues learning, he or she will acquire newer skills that can add up to the things that he or she can do. In effect, the studies showed that profit-sharing extended to non-managerial employees had increased productivity more than what the profit-sharing scheme with managerial workers did. Benchmarking also raised labor productivity by 6%. Computers To date, computers have also played a significant role in productivity increase (12% output) compared in the 80 s when equipment investments accounted for 7% output growth. Experts think this is caused by business cycle forces affecting the demand and supply of labor. The swings in the quantity of labor affect the productivity fluctuations. Per capita income growth Economic textbooks declare that productivity growth and real wages growth are equal. By this assertion, it would seem that productivity growth is equal to the growth of real per capita income.