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From Wikipedia, the free encyclopedia

Churn rate (sometimes called attrition rate) is a measure of the proportion of individuals or items moving out of a group over a specific period. It is one of two primary factors that determine the steady-state level of customers a business will support.[clarification needed]

Churn is widely applied in business for contractual customer bases. Examples include a subscriber-based service model as used by mobile telephone networks and pay TV operators. The term is often synonymous with turnover, for example participant turnover in peer-to-peer networks. Churn rate is an input into customer lifetime value modeling, and can be part of a simulator used to measure return on marketing investment using marketing mix modeling.[1] The term comes from the image of agitation of cream in a butter churn.

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Transcription

Customer base churn

Churn rate, when applied to a customer base, is the proportion of contractual customers or subscribers who leave a supplier during a given period. It may indicate of customer dissatisfaction, cheaper and/or better offers from the competition, more successful sales and/or marketing by the competition, or reasons having to do with the customer life cycle.

Churn is closely related to the concept of average customer life time. For example, an annual churn rate of 25 percent implies an average customer life of four years. An annual churn rate of 33 percent implies an average customer life of three years. The churn rate can be minimized by creating barriers which discourage customers to change suppliers (contractual binding periods, use of proprietary technology, value-added services, unique business models, etc.), or through retention activities such as loyalty programs. It is possible to overstate the churn rate, as when a consumer drops the service but then restarts it within the same year. Thus, a clear distinction needs to be made between "gross churn", the total number of absolute disconnections, and "net churn", the overall loss of subscribers or members. The difference between the two measures is the number of new subscribers or members that have joined during the same period. Suppliers may find that if they offer a loss-leader "introductory special", it can lead to a higher churn rate and subscriber abuse, as some subscribers will sign on, let the service lapse, then sign on again to take continuous advantage of current specials.

When talking about subscribers or customers, sometimes the expression "survival rate" is used to mean 1 minus the churn rate. For example, for a group of subscribers, an annual churn rate of 25 percent is the same as an annual survival rate of 75 percent. Both imply a customer lifetime of four years. I.e., a customer lifetime can be calculated as the inverse of that customer's predicted churn rate. For a group or segment of customers, their customer life (or tenure) is the inverse of their aggregate churn rate. Gompertz distribution models of distribution of customer life times can therefore also predict a distribution of churn rates.

For companies with a fast-growing customer base (e.g., digital media companies in a BCG-matrix problem child or star phase), confusion can arise between the statistical analyses associated with what percentage of the whole customer base churns in a given year – What percentage of the base of subscribers in all of 2010 churned out? – versus a particular customer cohort's churn rate. For example: Taking those customers who subscribed in given month, say January 2010 – How many had churned out by January 2011? Examining churn for a fast-growing aggregated customer base will understate the true churn rate compared to cohort based approach to the calculation. The cohort based approach will also allow you to calculate the survival rate and the average customer life, whereas the aggregate approach can not calculate these two metrics.

Researchers at Deloitte have argued that social network analysis is a good tool to calculate churn.[2]

In recent years, using AI and machine-learning as a means to calculate customer churn has become increasingly common for large retailers and service providers.[3]

The phrase "rotational churn" is used to describe the phenomenon where a customer churns and immediately rejoins. This is common in prepaid mobile phone services, where existing customers may take up a new subscription from their current provider in order to avail of special offers only available to new customers.

In most circumstances churn is seen as indicating that customers are dissatisfied with a service. However, in some industries whose services delivers on a promise, churn is considered as a positive signal, such as the health care services, weight loss services and online dating platforms. [4]

Some researchers have disputed the simple assumption that just dissatisfaction would lead customers to churn, and called for a more nuanced approach.[5]

See also

References

  1. ^ "Customer Churn Rate: Definition, Measuring Churn and Increasing Revenue". ReSci. 2014-10-30. Retrieved 2017-06-08.
  2. ^ "Customer Retention | Applied Analytics". Deloitte Czech Republic. Retrieved 2021-03-07.
  3. ^ Lalwani, Praveen; Mishra, Manas Kumar; Chadha, Jasroop Singh; Sethi, Pratyush (2021-02-14). "Customer churn prediction system: a machine learning approach". Computing. 104 (2): 271–294. doi:10.1007/s00607-021-00908-y. ISSN 1436-5057. S2CID 233947001.
  4. ^ Dechant, Andrea; Spann, Martin; Becker, Jan U. (27 August 2018). "Positive Customer Churn". Journal of Service Research: 109467051879505. doi:10.1177/1094670518795054.
  5. ^ "The Power of Category-Level Churn Analysis". ciValue. 2020-07-27. Retrieved 2021-03-07.

Further reading

This page was last edited on 9 November 2023, at 13:19
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