This is caused by fluctuations in unemployment, labor force participation, and working hours per person. Inflation One question posed by experts is the following: If productivity growth is inherently a real phenomenon and inflation is a monetary phenomenon, why is there a relationship? One possibility they had looked into is that higher inflation rates could distort the price mechanism. However, there appeared to be some exceptions to the pro-cyclicality of labor productivity. The experiences of the United States and Europe are two examples reflecting this economic wrinkle. Compared side by side, striking differences are evident between these two regions in terms of the productivity growth rates with which they entered the current recession. Negative motivations On the other hand, both of these motivating factors are unfortunately short-term situations. After the workers adapted to the shorter work hours, their stress levels decreased in regards to their perceived amount of time to get the job done. Soon, they reverted back to their old coffee breaks and Internet surfing instead of working. Information that can be received in various forms can now be responded to with more immediacy than information passed through only one form. Communications with more than one person, communications while traveling and the easy archiving and searching of all types of messages are some of the ways that efficiency (productivity) may be increased with unified communications. These techniques had been developed for different applications, too. There is need, therefore, to combine and unify these differing views and techniques. Basically, this is simply to be able to come up with a better and more comprehensive understanding of the concept of productivity. However, in discussing productivity, different authors had allocated the use in different ways such terms as measurement , evaluation , performance , improvement , and productivity . Profit-sharing In manufacturing plants with profit-sharing schemes for non-managerial workers, there was a 7% higher labor productivity shown compared with their competitors in the same field. Those with R & D (research and development) had an average 6% increase. 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.