Faith, Uncertainty, and the Search for Something True
What I've kept, what I've questioned, and what I'm still trying to understand.
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View all Discretionary Analysis and Quantitative Analysis
The words "discretionary" and "quantitative" make it sound like one form of analysis uses math while the other is more whimsical. That's definitely not the case, both are mathematical and both are powerful tools.
Minimum Wage
How profit-maximizing employers tend to respond to minimum-wage increases, and what that means for low-wage workers.
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5 pieces
Quantitative Finance
Factor models, benchmark-relative portfolio construction, alpha, and active portfolio implementation.
Factor Models 101Benchmark Portfolio Optimization
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14 pieces
Econometrics
Regression, inference, asymptotics, and the assumptions behind causal claims.
The Geometry of Ordinary Least SquaresOLS Unbiasedness
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7 pieces
Machine Learning
Model selection, loss functions, generalization, neural networks, and reinforcement learning.
Intro to Loss FunctionsThe Modeling Tradeoff
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7 pieces
Controls
Least-squares filtering, matrix norms, projections, and signal-processing foundations.
The Gram Matrix and Normal EquationsMatrix Norms
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9 pieces
Reference
Short definitions and standalone derivations that support the longer notes.
Projection MatrixThe Beta Constraint for Active Portfolios
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33 pieces
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View projectA software factory for backend services. Run a production backend without a platform team.
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