(3) monetary benefits -- increase the monetary value of assets. There are both measurable and unquantifiable benefits in these three different forms of income. Among them: mental income is too strong to measure, monetary gain is easy to measure because of the static concept of value change. Economists, therefore, focus only on actual earnings. 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. [R esponding to suggest continued low interest rates and bond purchases at the limiting the central bank's room for manoeuvre in the case of an economic downturn, draghi said the drop was a "the possibility of more distant than it was a year ago". The CryptoKitties, priced in too much money, almost caused a network outage, becoming the cutest incentive to expand trade throughput and liquidity. Activity diagrams must be used in alignment along with other modeling techniques like interaction diagrams and State diagrams. The main reason behind with your diagrams would be to model the task flow behind it being designed. these Diagrams are also helpful for analyzing a use case by describing what actions have to take place then when they ought to occur, describing an elaborate sequential algorithm and modeling applications with parallel processes. The rubber hose in the engine compartment will be used for a long time and it will be a problem for older vehicles. Once aging, gasoline can leak into the engine compartment. The air conditioning system will allow the smell of petrol to enter the car. Therefore, once the rubber tube is old, need to change promptly!