This page lists software I have authored along with others’ software that I frequently recommend to economic researchers.
pyblp: BLP Demand Estimation with Python 3
with Chris Conlon
Open-source Python 3 package for estimating demand with BLP-type random coefficients logit models. Features include supply-side moments, demographics, nesting parameters, optimal instruments, partial ownership matrices, analytic gradients, fixed effect absorption, fixed point acceleration, sparse grid integration, synthetic data construction, merger simulation, and parametric bootstrapping of post-estimation outputs.
Simple relational database system. SQLite is much easier to set up than client-server systems, but contains all the functionality needed by most researchers to structure and build relations between many datasets. It also comes pre-packaged in Python as the sqlite module.
Python package that allows researchers to run R functions in Python. This is incredibly useful when a research project is written in Python but relies on statistical routines implemented only in R.
Python package for symbolic mathematics. Think Mathematica or Maple, but open-source and easier to integrate into modern workflows.
System for web browser automation. Selenium can simulate clicks and keystrokes to automate the chore of clicking through a website. For example, it can be used to scrape data from a website that lacks a modern API. Python integration is simple with the selenium package.