Graduation Year

2021

Date of Submission

11-2020

Document Type

Open Access Senior Thesis

Degree Name

Bachelor of Arts

Department

Economics

Reader 1

Benjamin Gillen

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Terms of Use for work posted in Scholarship@Claremont.

Abstract

Regression splines have an established value for producing quality fit at a relatively low-degree polynomial. This paper explores the implications of adopting new methods for knot selection in tandem with established methodology from the current literature. Structural features of generated datasets, as well as residuals collected from sequential iterative models are used to augment the equidistant knot selection process. From analyzing a simulated dataset and an application onto the Racial Animus dataset, I find that a B-spline basis paired with equally-spaced knots remains the best choice when data are evenly distributed, even when structural features of a dataset are known and implementable. However, the residual-based knot selection outperforms both the equidistant knot placement and structural knot placement methods when data are irregularly distributed.

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