If bigger objects go into a jar, then there will be space to fill it with smaller objects in sequence. If the order of the objects are reversed, then it ends in filling it at the starting point. Happiness in life is similar to this. Fill high priority needs in the life, and smaller needs can be...

We analyze the topical question of how the compensation of elected politicians affects the set of citizens choosing to run. To this end, we develop a sparse and tractable citizen-candidate model of representative democracy with ability differences, informative campaigning and political parties....

Using data derived from a number of stand alone surveys in different countries, this paper explores international differences in the paths of diffusion of new manufacturing technologies. It is observed that diffusion paths are technology specific and that no one country either in Europe or North...