# Dataframe: `P01:greenwood_hanson_hys` - Greenwood-Hanson High-Yield Share Data (Published Historical, 1926-2008) ## Overview - **File:** `_data/raw_data/greenwood_hanson_hys_historical.parquet` - **Source:** Greenwood, Robin, and Samuel G. Hanson (2013), "Issuer Quality and Corporate Bond Returns," *Review of Financial Studies* 26(6), 1483-1525, Table 2. A new vintage of the published series is pulled from the [HBS](https://www.hbs.edu/behavioral-finance-and-financial-stability/Documents/ChartData/LineCharts/InvestorCreditSentiment.xlsx). - **Pulled by:** `pull_greenwood_hanson.py` - **Frequency:** Annual, 1926-2008 - **Index:** `year` ## Column Dictionary | Column | Description | | --- | --- | | hy_share | Published Greenwood-Hanson (2013) annual high-yield share (fraction of nonfinancial corporate bond issuance rated below investment grade), from Table 2 of Greenwood and Hanson (2013). | | ln_hy_share | Natural log of `hy_share`. | | source | Label identifying the data's provenance; always 'gh2013' for this published historical series. | ## DataFrame Glimpse ``` Rows: 90 Columns: 4 $ hy_share 0.2473771 $ ln_hy_share -1.3968413859595126 $ source 'gh2013' $ year 2015 ``` ## Dataframe Manifest | Dataframe Name | Greenwood-Hanson High-Yield Share Data (Published Historical, 1926-2008) | |--------------------------------|--------------------------------------------------------------------------------------| | Dataframe ID | [greenwood_hanson_hys](../dataframes/P01/greenwood_hanson_hys.md) | | Sources | Greenwood & Hanson (2013), "Issuer Quality and Corporate Bond Returns," Review of Financial Studies 26(6), 1483–1525 | | Providers | Greenwood & Hanson, Review of Financial Studies | | Provider Links | https://academic.oup.com/rfs/article-abstract/26/6/1483/1595232 | | Tags | Raw Data, Hys, Greenwood, Hanson, High Yield Share | | Access Types | Public | | How is data pulled? | HTTP download via Python `requests` (Excel workbook) | | Data available up to (min) | N/A | | Data available up to (max) | N/A | | Dataframe Path | C:\Users\fraff\OneDrive\Documentos\UChicago\FINM_32900_Full_Stack_Quantitative_Finance\Project\p03_lopez_salido_stein_zakrajsek_2017\_data\raw_data\greenwood_hanson_hys_historical.parquet | **Linked Charts:** - None ## Pipeline Manifest | Pipeline Name | Credit-Market Sentiment and the Business Cycle | |---------------------------------|--------------------------------------------------------| | Pipeline ID | [P01](../../../index.md) | | Maintainer | Fernando Raffo, Bangjie Xu | | Contributors | Fernando Raffo, Bangjie Xu | | Repository | https://github.com/fernando-raffo/p03_lopez_salido_stein_zakrajsek_2017 | | Pipeline Web Page | Pipeline Web Page | | Date of Last Code Update | 2026-08-19 22:04:54 | | OS Compatibility | Windows, Linux, MacOS | | Linked Dataframes | [P01:fred_macroeconomic_variables](../../dataframes/P01/fred_macroeconomic_variables.md)
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[P01:greenwood_hanson_hys](../../dataframes/P01/greenwood_hanson_hys.md)
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[P01:shiller_processed_annual_series](../../dataframes/P01/shiller_processed_annual_series.md)
[P01:greenwood_hanson_hys_processed_series](../../dataframes/P01/greenwood_hanson_hys_processed_series.md)
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