IND_2022_ESM_v01_M
Enterprise Survey of Micro Firms 2022
ESM 2022
Name | Country code |
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India | IND |
Enterprise Survey [en/oth]
The Enterprise Surveys of Micro firms (ESM) conducted by the World Bank Group's (WBG) Enterprise Analysis Unit (DECEA) in India. The survey covers nine cities: Hyderabad, Telangana; Jaipur, Rajasthan; Kochi, Kerala; Ludhiana, Punjab; Mumbai, Maharashtra; Sehore, Madhya Pradesh; Surat, Gujarat; Tezpur, Assam; and Varanasi, Uttar Pradesh.
The primary objectives of the ESM are to: i) understand demographics of the micro enterprises in the covered cities, ii) describe the environment within which these enterprises operate, and iii) enable data analysis based on the samples that are representative at each city level.
Sample survey data [ssd]
The 2022 India Enterprise Survey of Micro Firms covered the following topics:
Nine cities in India: Hyderabad, Telangana; Jaipur, Rajasthan; Kochi, Kerala; Ludhiana, Punjab; Mumbai, Maharashtra; Sehore, Madhya Pradesh; Surat, Gujarat; Tezpur, Assam; and Varanasi, Uttar Pradesh.
The universe of ESM includes formally registered businesses in the sectors covered by the ES and with less than five employees. The definition of formal registration can vary by country. The universe table for each of the nine cities covered by ESM in India was obtained from the 6th Economic Census (EC) of India (conducted between January 2013 and April 2014), which has its own well-defined definition of registration. Generally, this entails registration with any central/government agency, under Shops & Establishment Act, Factories Act etc.
In terms of sectors, the survey covers all non-agricultural and non-extractive sectors. In particular, according to the group classification of ISIC Revision 4.0, it includes: all manufacturing sectors (group D), construction (group F), wholesale and retail trade (group G), transportation and storage (group H), accommodation and food service activities (group I), a subset of information and communications (group J), some administrative and support service activities (codes 79) and other service activities (codes 95). Notably, the ESM universe excludes the following sectors: financial and insurance activities (group K), real estate activities (group L), and all public or utilities-sectors.
Name |
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World Bank Group (WBG) |
Name | Abbreviation |
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World Bank Group | WBG |
The sample for Enterprise Survey of Micro firms in India 2022 was selected using stratified random sampling, following the methodology explained in the Sampling Note (https://www.enterprisesurveys.org/content/dam/enterprisesurveys/documents/methodology/Sampling_Note-Consolidated-2-16-22.pdf). Stratified random sampling was preferred over simple random sampling for several reasons, including:
a. To obtain unbiased estimates for different subdivisions of the population with some known level of precision, along with the unbiased estimates for the whole population.
b. To make sure that the final total sample includes establishments from all different sectors and that it is not concentrated in one or two of industries/sizes/regions.
c. To exploit the benefits of stratified sampling where population estimates, in most cases, will be more precise than using a simple random sampling method (i.e., lower standard errors, other things being equal.)
d. Stratification may produce a smaller bound on the error of estimation than would be produced by a simple random sample of the same size. This result is particularly true if measurements within strata are homogeneous.
e. The cost per observation in the survey may be reduced by stratification of the population elements into convenient groupings.
Two levels of stratification were used in this survey: industry and region. For stratification by industry, two groups were used: Manufacturing (combining all the relevant activities in ISIC Rev. 4.0 codes 10-33) and Services (remainder of the universe, as outlined above). Regional stratification was done across nine cities included in the study, namely: Hyderabad, Jaipur, Kochi, Ludhiana, Mumbai, Sehore, Surat, Tezpur and Varanasi.
Since the sampling design was stratified and employed differential sampling, individual observations should be properly weighted when making inferences about the population. Under stratified random sampling, unweighted estimates are biased unless sample sizes are proportional to the size of each stratum. With stratification the probability of selection of each unit is, in general, not the same. Consequently, individual observations must be weighted by the inverse of their probability of selection (probability weights or pw in Stata).
As noted above, the universe table and the sampling frame used in the India 2022 ESM are from different sources. Consequently, the eligibility adjustments that is standard for all ES survey was not applied and the base weights were used. This means that the sampling weight for each stratum was calculated as the ratio between the universe and the number of achieved interviews.
The variable naming reflects whether or not the respective variable is also present in the ES or ESIS databases, for cross-size/registration-status comparability. In particular, all variables the first letter of which matches the section of the questionnaire are also present in the standard ES (not only in India but including most other ES). The variables starting with letter i are also present in the ESIS. All the variables that are specific to ESM start with the letter m. The variables with msc in the name are specific to the India ESM, and thus may not be found in the implementation of the rollout in other countries. All variables are numeric with the exception of those variables with an x at the end of their names, which are alpha-numeric.
There are 2 establishment identifiers, idstd and id. The first is a global unique identifier. The second is a country unique identifier. The variables a2 (sampling region), a6a (sampling establishment’s size), and a4a (sampling sector) contain the establishment’s classification into the strata chosen for each country using information from the sample frame. The strata were defined according to the guidelines described above. As these stratification variables contain information from the sampling frame, they may not coincide with the reality of individual establishments as more accurate information is collected through the detailed ESM interview.
As noted above, there are two levels of stratification: industry (variable a4a) and region (a2). Different combinations of these variables generate the strata cells for each industry/region combination (variable strata). A distinction should be made between the variable a4a and d1a2_v4/d1a2 (industry expressed as ISIC rev. 4.1 and 3.1, respectively). The former gives the establishment’s classification into one of the chosen industry-strata based on the sample frame, whereas the latter gives the establishment’s actual industry classification (four-digit code) based on the main activity at the time of the survey.
The survey was implemented following a two-stage procedure. Sometimes, first a screener questionnaire is applied over the phone to determine eligibility and to make appointments. Then a face-to-face interview takes place with the Manager/Owner/Director of each establishment. However, sometimes the phone numbers were unavailable in the sample frame, and thus the enumerators applied the screeners in person. The variables a4b_v4 and a6c contain the industry and size of the establishment from the screener questionnaire. Note that there are variables for size (section L) that reflect more accurately the reality of each establishment. Users are advised to use these variables for analytical purposes.
Most of the questions in the ESM instrument refer to the information about the last completed fiscal year. For India 2022 ESM, this date was March 31, 2021. For questions pertaining to monetary amounts, the unit is the Indian rupee.
Start | End |
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2021-12 | 2022-03 |
The fieldwork was implemented by Nielsen (India) Pvt Ltd, and the data was collected between December 2021 and March 2022. The ESM in cities in India was made possible thanks to the cooperation with Omidyar Network India.
The World Bank Group. India - Enterprise Survey of Micro Firms (ESM) 2022, IND_2022_ESM_v01_M. Dataset downloaded from https://www.enterprisesurveys.org/en/data on [date].
The user of the data acknowledges that the original collector of the data, the authorized distributor of the data, and the relevant funding agency bear no responsibility for use of the data or for interpretations or inferences based upon such uses.
Name | Affiliation | |
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Enterprise Analysis Unit | World Bank Group | enterprisesurveys@worldbank.org |
DDI_IND_2022_ESM_v01_M_WB
Name | Abbreviation | Affiliation | Role |
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Development Data Group | DECDG | World Bank | Documentation of the study |
2025-02-06
Version 01 (February 2025)