Micro-Enterprise Survey 2006 - Tanzania

Abstract
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This research of private non-agricultural firms with less than five employees was conducted in Tanzania between November and December 2006, at the same time with 2006 Tanzania Enterprise Survey. Data from 65 establishments were analyzed.

Micro-Enterprise Survey topics include firm characteristics, gender participation, access to finance, annual sales, costs of inputs/labor, workforce composition, bribery, licensing, infrastructure, trade, crime, competition, capacity utilization, land and permits, taxation, informality, business-government relations, innovation and technology, and performance measures. The questionnaire also assesses the respondents' opinions on what are the obstacles to firm growth and performance.

Geographic coverage
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National

Analysis unit
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The survey targets manufacturing/services sectors establishments with one to four employees.

Universe
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The whole population, or the universe, covered in the Enterprise Surveys is the non-agricultural economy. It comprises: all manufacturing sectors according to the ISIC Revision 3.1 group classification (group D), construction sector (group F), services sector (groups G and H), and transport, storage, and communications sector (group I). Note that this population definition excludes the following sectors: financial intermediation (group J), real estate and renting activities (group K, except sub-sector 72, IT, which was added to the population under study), and all public or utilities sectors.

Kind of data
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Sample survey data [ssd]

Sampling procedure
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Sampling techniques are similar for Tanzania Micro-Enterprise and Enterprise 2006 surveys.

In the Enterprise Survey, the universe is stratified by industry sectors, establishment size and regions. In the Micro-Enterprise Survey, stratification by size is missing: all businesses surveyed have less than five workers.

For more technical details on the sampling strategy for the Enterprise Surveys, please review "Sampling Methodology" in "Technical Documents" folder.

Mode of data collection
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Face-to-face [f2f]

Research instrument
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The current survey instrument is available:
Tanzania Micro-Enterprise Survey Questionnaire 2006.

Cleaning operations
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Data entry and quality controls are implemented by the contractor and data is delivered to the World Bank in batches (typically 10%, 50% and 100%). These data deliveries are checked for logical consistency, out of range values, skip patterns, and duplicate entries. Problems are flagged by the World Bank and corrected by the implementing contractor through data checks, callbacks, and revisiting establishments.

摘要
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本项关于五人以下私营非农业企业的研究于2006年11月至12月在坦桑尼亚进行，与2006年坦桑尼亚企业调查同步进行。对65个机构的数据进行了分析。

微型企业调查主题包括企业特征、性别参与、融资渠道、年销售额、投入/劳动力成本、劳动力构成、贿赂、许可、基础设施、贸易、犯罪、竞争、产能利用、土地和许可证、税收、非正式性、商业与政府关系、创新与科技以及绩效指标。问卷还评估了受访者对企业增长和绩效所面临障碍的看法。

地理覆盖范围
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全国

分析单位
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调查针对的是制造业/服务业领域，员工数为1至4人的机构。

总体
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企业调查所涵盖的总体，即整个调查范围，是非农业经济。它包括：根据ISIC修订版3.1的分组分类（组D）的所有制造业部门、建筑业部门（组F）、服务业部门（组G和H）以及运输、仓储和通信部门（组I）。请注意，此人口定义不包括以下部门：金融中介（组J）、房地产和租赁活动（组K，除子部门72，IT外，IT已被纳入研究总体），以及所有公共或公用事业部门。

数据类型
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样本调查数据 [ssd]

抽样程序
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坦桑尼亚微型企业调查和2006年企业调查的抽样技术类似。

在企业调查中，总体按行业部门、机构规模和地区进行分层。在微型企业调查中，没有按规模进行分层：所有被调查的企业员工数均少于五人。

有关企业调查抽样策略的更多技术细节，请参阅“技术文档”文件夹中的“抽样方法”。

数据收集方式
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面对面 [f2f]

研究工具
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当前调查工具如下：
坦桑尼亚微型企业调查问卷2006。

数据清洗操作
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数据录入和质量控制由承包商执行，数据以批量形式（通常为10%、50%和100%）提交给世界银行。这些数据交付将进行检查，以确保逻辑一致性、超出范围值、跳过模式和重复条目。问题由世界银行标记，并由实施承包商通过数据检查、回访和重新访问机构进行纠正。