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Household Budget and Consumption Basket Study

Added Jul 2026 3 design docs

Economics students meet Engel's law as a sentence in a textbook: as household income rises, the share of spending that goes on food falls. It is one of the oldest empirical regularities in the discipline, and it can be tested in a single neighbourhood in a single month with nothing more than a notebook and ten willing families. Yet most households in India have never seen their own spending written down by category, which is why a family earning a decent monthly income can still be surprised at the end of every month, and why the phrase household budget usually means a vague intention rather than a document.

The intern runs a seven-day expenditure diary study across ten consenting households of deliberately different income levels. A short intake questionnaire in google-forms captures household size, earners and monthly income band, each family logs every rupee spent for a week on a printed diary sheet, and roughly 700 line items are categorised and analysed in excel to produce expenditure shares, food shares, an Engel scatter and per-capita comparisons. The findings become a 16-18 page report written in google-docs with a one-page profile for each household, a reusable budget planner workbook other families can actually download and use, and an explainer poster designed in canva.

Completing the project takes the intern through household survey design, consent and privacy handling for financially sensitive data, expenditure classification into consistent categories, share and per-capita normalisation, and the interpretation of a real empirical law against a small and messy sample. This is the exact skill set behind consumer research, market sizing and development economics fieldwork, and the public repository leaves the intern with an original micro-dataset and a genuinely useful tool to point recruiters at.

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