Qatanajs/data-stories

Personal portfolio for statistical analyses — Kenya's digital economy & quantitative finance # Data Stories > Mathematical rigor applied to Kenya's digital economy and global markets. > Built by **J.S Katana** — BSc Mathematics and Computer Science, Founder & Lead Engineer at Qatana Pulse Systems. --- ## Overview This repository contains my personal portfolio for publishing statistical analyses, quantitative finance research, and data-driven narratives. By day, I build **QPS Flow** at Qatana Pulse Systems — a multi-tenant SaaS commerce engine for local SMEs. By night, I apply statistical discipline to real-world problems. The site is built with **Astro**, deployed on **Vercel**, and designed for mobile-first consumption (developed entirely on Android via Termux). --- ## Live Site 🌐 **data-stories-qatanajs.verce… *(deploying May 17, 2026)* --- ## Published Projects ### Development Economics | # | Project | Status | Methods | |---|---------|--------|---------| | 1 | Digital Business Readiness | ✅ Published | OLS Regression, World Bank WDI | | 2 | The Mobile Money Leapfrog | 📝 Planned | Time-Series, CBK Data | | 3 | The Logistics Bottleneck | 📝 Planned | Panel Data, LPI Analysis | | 4 | The County-Level Digital Divide | 📝 Planned | Spatial Regression, KNBS | | 5 | The Youth Digital Advantage | 📝 Planned | Cohort Analysis | ### Quantitative Finance | # | Project | Status | Methods | |---|---------|--------|---------| | 1 | Statistical Arbitrage: FX Pair Trading | ✅ Published | Cointegration, Z-Score, Walk-Forward | | 2 | Golden & Death Cross Signals | 📝 Planned | Trend Following, SMA Crossover | | 3 | FX Correlation Regime Detection | 📝 Planned | Dynamic Correlation, Portfolio Theory | --- ## Key Findings ### Digital Business Readiness - **R² = 0.748** across 22 countries (2010–2023), n = 308 - **Logistics infrastructure** is the dominant predictor of financial inclusion (β = 20.60, p < 0.001) - **Internet penetration has no significant effect** — the M-Pesa leapfrog in statistical form - Kenya sits at the intersection of world-cl …