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The Official Journal of the Pan-Pacific Association of Input-Output Studies (PAPAIOS)

Table 5 Regression results of growth of sales and operational profits (IPR flows)

From: Revisiting incremental product innovations in the food-manufacturing industry: an empirical study on the effect of intellectual property rights

 Annual growth rate of sales (%) [fixed effect model]Annual growth of operating profits [pool model OLS]
[1][2][1][2]
AllListedAllListed
Flow of patens (previous 3 years)− 0.019 (0.000)− 0.009 (0.000)1.318 (6.024)1.486 (6.453)
Flow of trademark registrations0.011 (0.000)0.008 (0.000)2.466 (4.554)2.137 (3.763)
Flow of design patents (packages and related)0.136 (0.001)0.149 (0.001)46.878 (50.630)43.435 (53.952)
Flow of design patents (food shapes and tableware)0.303** (0.001)0.273** (0.001)64.024 (121.682)58.551 (116.731)
Flow of design patents (manufacturing equipment)− 0.129 (0.004)− 0.008 (0.002)512.493 (368.840)521.589 (407.770)
Log (Number of employees) 20.359* (0.080) 49.427 (238.357)
Asset intensity 0.197 (0.001) − 1.015 (3.153)
Log (Sales in the previous year)− 36. 404*** (0.042)− 49.054*** (0.060)  
Sales (million) in the previous year  0.000 (0.002)0.000 (0.002)
Constant378.123*** (0.440)384.566*** (0.747)284.917 (192.322)115.209 (1436.037)
Year dummies  YesYes
Observations912480726480
Number of firms19198  
Adjusted R2 (within).268.371.059.060
 (between).064.073  
 (overall).019.017  
F-value14.33***11.18***3.47***2.80***
  1. Cluster robust errors or robust errors are in parentheses
  2. ***p < 0.1%, **p < 1%, *p < 5%, +p < 10%