What is the difference and significance between year on year and month on month?

year-on-year andRing on monthThe difference lies in different definitions, different use cases, different calculation formulas, and different emphases. Among them, year-on-year refers to the comparison between the current period and the same period, while the month-on-month comparison refers to the comparison between the current period and the previous period.

1. Different definitions:Year-on-year and month-on-month are used to indicate the direction and degree of development and change of something during the comparative period. Among them, year-on-year refers to the comparison between the current period and the same period, while the month-on-month comparison refers to the comparison between the current period and the previous period.

2. The use of the situation is differentThe month-on-month ratio is generally used in the month and day and is rarely used in the year, mainly to compare the degree of increase in a short period of time, but due to industry differences, such as tourism, will be affected by the off-peak season.

3. The calculation formula is differentThe year-on-year comparison is calculated as (January 2018 data, January 2017 data) and January 2017 data is 100%, while the month-on-month comparison formula is (February 2018 data, January 2018 data) and January 2018 data 100%.

4. The focus is differentThe month-on-month period highlights the short-term trend of the data, which can be affected by seasonal factors such as the season; The year-on-year comparison is more focused on reflecting the long-term general trend, which also avoids the seasonal factor.

Differences:

1. Year-on-year and month-on-month, although these two reflect the speed of change, due to the different base periods, the connotations reflected are completely different; Generally speaking, the year-on-month comparison can be compared with the month-on-month comparison, but the year-on-year comparison cannot be compared with the month-on-month comparison; For the same place, considering the reflection of the longitudinal development trend in time, it is often necessary to compare the year-on-year and month-on-month comparisons.

2. Year-on-year: Comparison with the same period in history is to compare with the same period in different years, such as July 2005 and July 2004, which is called year-on-year. As shown in the figure, the comparison between May 2012 and May 2013 is called year-on-year.

3. Month-on-month: Comparison with the previous statistical period is to compare with the previous adjacent period, for example, the comparison between July 2005 and June 2005, which is called month-on-month. As shown in the figure, the comparison between February and March is called month-on-month.

There are two methods of month-on-month growth rate and month-on-month development rate.

Month-on-month growth rate = (number of current periods - number of previous periods) 100% of the number of previous periods, reflecting how much the current period has increased compared with the previous period.

Month-on-month development rate = the number of the current period 100% of the previous period, the month-on-month development rate is the ratio of the level of the reporting period to the level of the previous period, reflecting the development and change of the phenomenon in the two periods before and after.

For example, the sales volume in the current period was 5 million, and the sales volume in the previous period was 3.5 million.

Month-on-month growth rate = (500-350) 350 100% =.

Month-on-month development rate = 500 350 100% =.

Month-on-month growth rate = month-on-month development rate - 1.

Year-on-year and month-on-month.

In statistics, year-on-year and month-on-month are used to indicate the direction and degree of development and change of something in a comparative period. For example, the comparison between February 2016 and February 2015 and the first half of 2016 and the first half of 2015 is based on the same period in history.

The previous statistical period is the base period, for example, the comparison between June 2016 and May 2016, and the second quarter of 2016 and the first quarter of 2016 is the quarter-on-quarter.

Month-on-month velocity reflects the timeliness of the index change.

Strong, relatively sensitive. Since it is compared to the same period of the previous year, it is possible to overcome the interference of seasonal factors (except for festivals that change in different months).

What does year-on-year and month-on-month mean?

1. The objects of comparison are different.

The year-on-year comparison is between the current period and the same period;

The sequential comparison between the current period and the previous period is made.

2. The scope of application is different.

Month-on-month is generally used in months and days, and is rarely used in the year, mainly to compare the degree of increase in a short period of time.

Year-on-year is generally used in two adjacent years, in the same time period, to check the degree of increase, generally used in the same month of two years, rarely used in the same date of two months.

What does year-on-year and month-on-month mean?

Difference Between Year-on-Year and Month-on-Month: The essence is different. The meaning is as follows:

1. Differences. 1. Year-on-year: The year-on-year comparison is generally the ratio of the nth month of the current year to the nth month of the past year.

The year-on-year development rate is mainly used to eliminate the impact of seasonal variations, and is used to illustrate the relative development rate achieved by comparing the current development level with the development level of the same period. For example, February of the current period is compared with February of the same period, and June of the current period is compared with June of the same period.

2. Month-on-month: Month-on-month is the ratio of change in volume in two consecutive statistical periods (such as two consecutive months). The month-on-month development rate is the ratio of the level of the difference in the reporting period to the level of the previous period, indicating the development rate of the phenomenon in the previous period.

If you calculate the comparison of each month in a year with the previous month, i.e., February compared to January, March to February, April to March, December to November, the degree of development from month to month is illustrated.

2. Significance. Year-on-year and month-on-month, although both reflect the speed of change, due to the different base periods, the significance of their reflection is completely different; Generally speaking, the month-on-month comparison is carried with the month-on-month comparison, and the year-on-year comparison cannot be compared with the month-on-month comparison; For the same place, considering the reflection of the longitudinal development trend in time, it is often necessary to compare the year-on-year and month-on-month comparisons.

Seasonally adjusted for the previous month

Month-on-month data are mostly seasonally adjusted. In order to facilitate the use of users, the month-on-month data of the current period is released at the same time as the month-on-month data of the current period, and the month-on-month data of the previous year is automatically corrected by the model through the National Bureau of Statistics**. However, since seasonal factors affect the comparability of data between the two comparison periods, the original statistical data need to be processed by the seasonally adjusted model.

However, due to the differences in the seasonally adjusted models and the differences in the parameter determination methods in the models, the results obtained will be different, which is also the difficulty of the month-on-month statistical work. In seasonal adjustment, the main method used is the ARIMA model, that is, the autoregressive moving average model.

The above content refers to Encyclopedia-Ring Comparison.

The year-on-year development rate is mainly to eliminate the influence of seasonal changes, and it is used to illustrate the relative development speed achieved by comparing the development level of the current period with the development level of the same period last year.

The month-on-month ratio is the ratio of the level of the reporting period to the level of the previous period, indicating the development rate of the phenomenon period-by-period. For example, the comparison of each month in a year with the previous month is calculated.