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Efficiency

As explained in Statistics Slam Dunk

Efficiency is the amount of player salary expenditure associated with each regular season win.

Efficiency measures dollars spent on player salaries for each regular season win, making payroll a directly interpretable investment metric. section 11.4.2

Use efficiency to compare NBA teams across 2000–2017:

  • Lower values indicate better efficiency because fewer salary dollars produced each regular season win. section 11.4.2
  • A horizontal bar chart sorts teams from most efficient to least efficient and labels each bar with average wins. section 11.4.2
  • Inflation-adjusted payroll and wins provide context for identifying outliers such as the Spurs and Knicks. section 11.4.2

The Spurs as an efficiency benchmark

The San Antonio Spurs averaged more regular season wins than every other team while spending less than $1.5 million in player salaries per win; the Knicks showed the opposite pattern. section 11.4.2

Figure 11.2 Spend on player salaries for every regular season win between 2000 and 2017, sorted from top to bottom between most efficient to least efficient
CH11_F02_Sutton

Compare team salary spend per regular season win in a sorted horizontal bar chart. section 11.4.2

How Statistics Slam Dunk covers it

How deep it goes
Defines the ratio and demonstrates sorted visualization, while stopping short of a formal efficiency model.
Examples
Uses 2000–2017 NBA team payrolls, wins, a horizontal bar chart, and contrasting Spurs and Knicks outcomes.
What it assumes
Assumes team salary and regular season win data, while introducing efficiency through a concrete NBA comparison.
What you can do after
Apply it via ggplot2 and scales to rank teams by salary spend per regular season win.
How it connects
Connects salary efficiency with player salaries, regular season wins, standardization, outliers, and data visualization.

This explainer was generated by Manning's knowledge graph from the text of Statistics Slam Dunk. The section links point to the parts of the book it draws on.