This paper presents a new model defining the social welfare in gross national product and its application for national land planning and energy conservation program.
The new model is shown as follows: where P: Production, T: Transportation, W: Personal consumption & Social welfare K: Investment & Consumption in the private sector S: Investment in the public sector
The meaning of this model is explained in the next table.
Then it would be possible to define that an optimum national land planning needs less investment for the process of production and transportation and more distribution of gross national product for personal consumption & social welfare in the new model defined above.
Next I present a modified model to evaluate energy conservation program. It is shown as follows:
In this modified model, row E indicates energy consumption in each processes. In general, energy conservation program are classified into three stages. First stage is a mere prevention of energy waste. Second stage is an energy conservation method that accompanies with some technological improvement or reaction in the society. Third stage is a development of new energy. It is also possible to evaluate the effect of these program and policies, using the modified model defined above.
