To start with, there is a tendency to view Serbs as people with little or no motivation to work in order to improve their living conditions. Besides, preassumptions are made that Serbs lack organisational skills. Another preconception is that Serbs have no business sense. Let's see and try to view these beliefs, all of which count for a stereotype about Serbian laziness.
First of all, speaking of the motivation part, there certainly are people in Serbia who lack motivation and who don't have any real idea of direction in their lives. However, one can find such individuals in any other country as well, can't they? Secondly, there is a grain of truth in this preconception about organisational skills. I know some people who experienced serious problems with organising their daily routine. Nonetheless, there are much more people I know who have some kind of ability, or a natural talent, to organise their day in segments, so that they can divide it into time for work and time for pleasure. Finally, I'd like to say something about business part. Not everyone in this world, of course, is a natural born businessman. Some nations are better in economic respect than others, which is probably due to mentality and socio-cultural factors. However, there are many examples which shatter this kind of stereotype. Myriads of people with Serbian origin made their name in extremely lucrative professions, such as Carl Malden, Mila Jovovich, Peter Bogdanovich, Vlade Divac, Holly Valance and many others. Additionally, variety of Serbs across the globe contribute to the development of culture, business and industry of countries they live in (unfortunately for Serbia, but that's the way things are). As you can see, Serbian people can cope with business of various kinds very well.
To sum up, Serbs do tend to be lazy and without motivation for work. Nevertheless, Serbs are, on most occasions, good and industrious workers, who are persistant to achieve what they want. Given that Serbs were enslaved by different conquerors for centuries, they certainly know what it's like to strive for achieving important goal, and it's tenacity along with agility that helps them to accomplish what they set out to do.