what does it mean to be a non profit According to this model, the interest rate decision depends on the supply of savings and investment needs, money supply, money demand, four factors, cause a change in the saving investment, money supply and demand factors will affect the level of interest rates. This theory is characterized by general equilibrium analysis. 2. P45 forms are in four parts, part 1 is retained with the issuing employer and the employee retains part 1 A and may hand parts 2 and 3 for the new employer. The new employer cannot make use of the P45 tax details unless both parts are given over. If either part 2 or 3 with the P45 form is missing then this employee must be asked to complete the Inland Revenue P46 form. A possible reason for the gasoline smell of a car There were two opposing views of development in the 19th century. A push performance degradation is based on the second law of thermodynamics system, it argues that, due to the dissipation of energy, the world tends to be weak, the universe tends to "heat death", the structure of the retreat, disorder tend to the maximum, the whole world over time and the process of dying; Another is based on Darwin's theory of evolution of the evolution of the concept system, it points out that social evolution is the result of the increasing division of species, the evolution and increased, structure complex and orderly, and constantly reinforced by functional evolution, all nature and human society are to develop more advanced, more orderly organization structure.