Finally, Evidence for a Momentum Effect in the NBA
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        Jeremy Arkes
        
 and Jose Martinez 
No previous study on momentum in team sports has found any valid evidence for a momentum effecti.e., an effect of success in the past few games, over and above the effect of team quality. We develop an econometric model to determine if there is a momentum effect in the NBA by examining how success over the past few games leads to a higher probability of winning the next game. The model takes into account the home vs. away strengths of the teams in the current game as well as their opponents in the previous games (to calculate measures of adjusted success over the past few games). Thus, success in previous games is adjusted for quality of the wins or losses. In addition, we account for rest days before the current game for both teams. Using data over three NBA seasons (2007-2009), we find strong evidence for a positive momentum effect.
©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston
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 - Predicting the Atlanta Falcons Play-Calling Using Discriminant Analysis
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 - On Estimating the Ability of NBA Players
 - The Quarterback Prediction Problem: Forecasting the Performance of College Quarterbacks Selected in the NFL Draft
 - Finally, Evidence for a Momentum Effect in the NBA
 - Are NFL Coaches Risk and Loss Averse? Evidence from Their Use of Kickoff Strategies
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 - Using Generalizability Theory to Examine Scoring Reliability and Variability of Judging Panels in Skating Competitions
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 - Prediction Accuracy of Linear Models for Paired Comparisons in Sports
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 - Devising New Australian Rules Football Scoring Systems
 - Discriminating Factors between Successful and Unsuccessful Teams: A Case Study in Elite Youth Olympic Basketball Games
 - Tweaking the NFL's Quarterback Passer Rating for Better Results
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Articles in the same Issue
- Article
 - Estimating the Offsetting Effects of Driver Behavior in Response to Safety Regulation: The Case of Formula One Racing
 - Predicting the Atlanta Falcons Play-Calling Using Discriminant Analysis
 - Computing the Probability of Winning a Competition with an Application to Horse Races
 - A Regression-Based Adjusted Plus-Minus Statistic for NHL Players
 - Markov Analysis of APBA, a Baseball Simulation Game
 - Sports Ranking with Nonuniform Weighting
 - You're Hurting My Game: Lineup Protection and Injuries in Major League Baseball
 - Factor Analysis in Performance Diagnostic Data of Competitive Ski Jumpers and Nordic Combined Athletes
 - Match Analysis of Elite Ice Sledge Hockey in Paralympics 2010
 - And After That, Who Knows?: Detailing the Marginal Accuracy of Weekly College Football Polls
 - On Estimating the Ability of NBA Players
 - The Quarterback Prediction Problem: Forecasting the Performance of College Quarterbacks Selected in the NFL Draft
 - Finally, Evidence for a Momentum Effect in the NBA
 - Are NFL Coaches Risk and Loss Averse? Evidence from Their Use of Kickoff Strategies
 - Responses to Scoring or Conceding the First Goal in the NHL
 - Using Generalizability Theory to Examine Scoring Reliability and Variability of Judging Panels in Skating Competitions
 - Development of a Behavioural Assessment System for Achievement Motivation in Soccer Matches
 - Prediction Accuracy of Linear Models for Paired Comparisons in Sports
 - Comparing Hall of Fame Baseball Players Using Most Valuable Player Ranks
 - Devising New Australian Rules Football Scoring Systems
 - Discriminating Factors between Successful and Unsuccessful Teams: A Case Study in Elite Youth Olympic Basketball Games
 - Tweaking the NFL's Quarterback Passer Rating for Better Results
 - Home Advantage in American College Football Games: A Multilevel Modelling Approach
 - Estimating NHL Scoring Rates