Table 5 Treatment effects (after matching): articles and citations.

From: The value of research funding for knowledge creation and dissemination: A study of SNSF Research Grants

 

ln(articles+1)t+1

ln(articles+1)t+2

ln(articles+1)t+3

ln(citations+1)t+1

ln(citations+1)t+2

ln(citations+1)t+3

Treated

1.409

1.421

1.431

3.756

3.909

4.038

SE

0.005

0.005

0.005

0.010

0.011

0.011

Control

1.221

1.227

1.274

3.223

3.482

3.670

SE

0.005

0.005

0.005

0.009

0.010

0.010

αTT

0.188

0.194

0.157

0.533

0.427

0.368

Diff. interval

0.175–0.201

0.180-0.207

0.142–0.171

0.505–0.559

0.398–0.455

0.337–0.398

Pr(∣T∣ > ∣t∣)

<0.001

<0.001

<0.001

<0.001

<0.001

<0.001

PS Treated

0.819

  

0.819

  

PS Control

0.813

  

0.813

  

Pr(∣T∣ > ∣t∣)

0.313

  

0.313

  

ES Treated

3.929

  

3.929

  

ES Control

3.904

  

3.904

  

Pr(∣T∣ > ∣t∣)

0.405

  

0.405

  

# matched

43,936

39,125

34,383

43,936

39,125

34,383

 

ln(av.citations+1)t+1

ln(av.citations+1)t+2

ln(av.citations+1)t+3

highly citedt+1

highly citedt+1

highly citedt+1

Treated

1.488

1.521

1.546

0.673

0.666

0.658

SE

0.004

0.004

0.004

0.003

0.003

0.003

Control

1.402

1.480

1.518

0.618

0.618

0.656

SE

0.004

0.004

0.004

0.003

0.003

0.003

αTT

0.086

0.041

0.028

0.055

0.048

0.002

Diff. interval

0.075-0.097

0.030–0.052

0.016–0.039

0.047–0.062

0.039–0.056

0.007–0.011

Pr(∣T∣ > ∣t∣)

 < 0.001

0.109

0.327

0.007

0.042

0.941

PS Treated

0.819

  

0.833

  

PS Control

0.813

  

0.826

  

Pr(∣T∣ > ∣t∣)

0.313

  

0.272

  

ES Treated

3.929

  

3.955

  

ES Control

3.904

  

3.930

  

Pr(∣T∣ > ∣t∣)

0.405

  

0.476

  

# matched

43,936

39,125

34,383

28,936

25,436

22,059

  1. The table shows sample means and results from t-tests on mean differences after matching. PS stands for Propensity Score and ES stands for Evaluation Score (which is here used as a numeric value). The number of matched pairs declines with each lead due to censoring at the end of the observation period.
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