# PriceLens dataset

A panel of online electronics prices from Bangladeshi retailers, collected by the PriceLens app between March and September 2026.

- DOI: https://doi.org/10.17632/jvkn4hsjgp.1
- Record: https://data.mendeley.com/datasets/jvkn4hsjgp/1
- Publisher: Mendeley Data (Elsevier)
- License: CC BY 4.0
- Authors: Joy Biswas and Sreya Mazumder, Premier University

## Coverage

- 1,274,246 price observations for 26,658 products.
- Four retailers: Star Tech, Techland, Apple Gadgets and Computer Village.
- Recorded 25 March to 28 September 2026.
- 1,205,045 observations are clean; no rows were removed.

## Method

An automated scraper rebuilt its queue of product pages every 12 hours. The median time between two observations of the same product is 53 hours. Each observation includes the price in Bangladeshi taka and poisha, a UTC timestamp, and quality flags for price changes, carried-forward prices, outliers and implausible values.

## Files and limitations

The product table gives each product's name, URL and retailer. A text-history table records name changes and SHA-256 hashes of descriptions. The README contains the data dictionary and known limitations, including survivorship bias and coverage gaps. DATASHEET.md describes collection, preprocessing and suitable uses.

## Citation

Biswas, J., & Mazumder, S. (2026). PriceLens: A Panel of Online Electronics Prices from Bangladeshi Retailers, 2026. Mendeley Data, V1. https://doi.org/10.17632/jvkn4hsjgp.1