What Is a Base Year?
The base year is the first to calculate an economic or financial index. Generally, the period starting from a base year does not exceed 100 years. Any year can be selected as the base year, but a more typical selection method is to select from the more recent years. New, more time-sensitive base years are regularly introduced and applied to data updates for specific indices.
Base year
Right!
- The base year is the first to calculate an economic or financial index. Generally, the period starting from a base year does not exceed 100 years. Any year can be selected as the base year, but a more typical selection method is to select from the more recent years. New, more time-sensitive base years are regularly introduced and applied to data updates for specific indices.
- definition
- The concept of the base year is widely used in various fields, including banking, construction, water conservancy, and climate change. At present, it deals with climate change (greenhouse gas emission reduction, greenhouse gas emission inventory), such as in the Kyoto Protocol. The "base year" for emission reduction specified in the 1990 is 1990, and the United States unilaterally set the "base year" to 2005 at the Copenhagen Conference in 2009, which has caused widespread controversy. China set 2005 as the "base year" in the compilation of greenhouse gas emission inventories.
- Base year concept
- Because the performance of greenhouse gas emissions is often measured relative to a past reference year, this reference year is the base year, so the greenhouse gas emission inventory protocol recommends that we establish a historical performance data as a comparison of emissions, and this performance data That is the base year emissions.
- The base year can be any year in history or a historical average of several years for which quantitative data can be obtained. If there is no specific base year, the base year can be selected as the reference year of the 1990 protocol. However, in many cases, due to the lack of reliable historical data, a more recent year can be used as a reference, especially in compliance When regulations or emissions trading become a consideration, the choice of reference year may also be related to national regulations or the requirements of the International Industry Alliance.