Endogenous Treatment Effects Estimators ：Stata操作视频

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Endogenous Treatment Effects Estimators ：Stata操作视频Measuring the Return to Online Advertising: Estimation and Inference of Endogenous Treatment EffectsAuthor

Listed:

• Shakeeb Khan

  (shakeeb.khan@bc.edu) (Boston College)

• Denis Nekipelov

  (University of Virginia)

• Justin Rao

  (Microsoft Research)

  
  

Registered:

• Shakeeb Khan

• Denis Nekipelov

  
  

Abstract

In this paper we aim to conduct inference on the “lift” effect generated by an online advertisement display: specifically we want to analyze if the presence of the brand ad among the advertisements on the page increases the overall number of consumer clicks on that page. A distinctive feature of online advertising is that the ad displays are highly targeted- the advertising platform evaluates the (unconditional) probability of each consumer clicking on a given ad which leads to a higher probability of displaying the ads that have a higher a priori estimated probability of click. As a result, inferring the causal effect of the ad display on the page clicks by a given consumer from typical observational data is difficult. To address this we use the large scale of our dataset and propose a multi-step estimator that focuses on the tails of the consumer distribution to estimate the true causal effect of an ad display. This “identification at infinity” (Chamberlain (1986)) approach alleviates the need for independent experimental randomization but results in nonstandard asymptotics. To validate our estimates, we use a set of large scale randomized controlled experiments that Microsoft has run on its advertising platform. Our dataset has a large number of observations and a large number of variables and we employ LASSO to perform variable selection. Our non-experimental estimates turn out to be quite close to the results of the randomized controlled trials.

Shakeeb Khan & Denis Nekipelov & Justin Rao, 2018. "Measuring the Return to Online Advertising: Estimation and Inference of Endogenous Treatment Effects," Boston College Working Papers in Economics946, Boston College Department of Economics.

Endogenous Treatment Effects Estimators ：Stata操作视频

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Measuring the Return to Online Advertising:Estimation and Inference of Endogenous Treatment Effects

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