lavender oil for bed bugs Activity-based costing (ABC) is an effective management technique for assigning and manipulating the overhead costs. Overhead expense analysis and assignment can be achieved more accurate by utilizing ABC methods for a variety of products, for product expenses and profitability analysis and for appropriate distribution and control over the overheads. 3. The role of securities investment There are many things you plus your children are capable of doing over a rainy day. For instance you might watch T.V. Or you might take action that might be more educational for you and your children. You along with your children are capable of doing a science project. You are probably wondering the reason why you may want to perform a science project. Here are 5 reasons science projects are wonderful activities for rainy days. Interest rates are an important tool for regulating monetary policy, and they are also used to control economic growth, such as investment, inflation and unemployment. Reasonable interest rate plays an important role in the economic leverage of social credit and interest rate. Investment in securities is conducive to adjusting capital investment and improving the efficiency of capital use, thus guiding the rational flow of resources and realizing optimal allocation of resources.