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Economics Meets Data Science: Finite Mixture Models - A Christmas Story

…dition of Economics Meets Data Science.This time I'd like to discuss one class of models that is widely used in Economics and yet many people haven't tried yet: Finite Mixture Models (FMMs). What are Finite Mixture Models (a lazy explanatio…

Economics Meets Data Science: The Structural Estimation Series Part IV

…:781-831. Economics Meets Data Science: The Structural Estimation Series, Part I Economics Meets Data Science: The Structural Estimation Series, Part II Economics Meets Data Science: Coding With Style Economics Meets Data Science: The Struc…

勉強会「Econ Fiesta」を実施しました

…tructural Economics as OSS speakerdeck.com発表者: Juan Martínez・西田 貴紀 (Sansan株式会社 DSOC 研究開発部)概要: 経済学の理論と実証を合わせた構造推定は、反実仮想分析など意思決定場面でユニークな洞察を与えうる魅力的な分析手法である。しかしその実行は容易ではなく、その一因として構造推定のためのライブラリが少なく、手軽に実行することができない点がある。そうした参入障壁を下げることを目的として、Sansan …

Hands-on guidance to DGL library _ (2) NodeFlow Data Structure

R&D

Hi, I am XING LI, a researcher from Sansan DSOC. Last time, we briefly discussed the DGL(Deep Graph Library) and one of its fundamental mechanisms: Message Passing. Today, we are going to explore another significant data structure: NodeFlow…

Economics Meets Data Science: The Structural Estimation Series Part III

Today's Agenda Hello again. I'm DSOC's Juan. It's time for the part III of the Structural Estimation Series. In the last post I described the dynamic optimization problem of Harold Zurcher according to Rust (1987), and presented some import…

Hands-on guidance to DGL library _ (1) Introduction and Message Passing

Hi, I am XING LI, a researcher from Sansan DSOC. Graph is a more general data form to describe our world. Sansan DSOC is creatively exploiting graph data to mining new value for benefitting customers. To coin a phrase, sharp tools make good…

Economics Meets Data Science: Coding With Style

…ming from Economics, my programming education was limited to punching my keyboard until STATA gave me some results. I was rarely asked to share my code because I mostly did research on my own; when I had to, the fact that everyone’s code wa…

Economics Meets Data Science: ML and Economics Together at Last

…empirical Economics, but most people don't seem to have heard of yet. The Background Since 6 years ago I have been hearing about Economics adopting (or being replaced by) Machine Learning (ML). It was at that time that Hal Varian published …

Economics Meets Data Science: The Structural Estimation Series, Part II

Hola again! DSOC's Juan here! It's autumn now, time to start craving pumpkin tarts and hot drinks. Recently I'm having hot matcha latte very often, maybe because it reminds me when I was a graduate student cleaning my data in some cafe arou…

Economics Meets Data Science: The Structural Estimation Series, Part I

…ajored in Economics when studying the undergrad back at home, then came to Japan in 2011, graduated from the PhD in Economics and joined Sansan in early 2019. Most of my research concentrates on Labor and Education Economics, both in Japan …

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