Lorenzo Ardito

8 Questions 7 Answers 0 Followers

Questions related from Lorenzo Ardito

Is it possibile to add quadratic terms in structural equation modeling (SEM)?

Let's suppose that I want to regress A over B and B over C using SEM. Is it possible to also add the variable A square to see whether A has a curvilinear effect on B? Thank you

22 December 2015 2,817 2 View

How can I plot results of a random-effects negative binomial regression?

I run a random-effects negative binomial regression. Using estimates of the regression, I would like to plot the effect of my independent variable (GeoDispersion) on my dependent variable...

11 November 2015 2,609 6 View

Do you think trademarks can be a good proxy for commercialization of technological products in the green energy field?

I am attempting to measure if a company introduces a product based on its own inventions using trademark data. In other words, I aim to assess if a firm that has patented technologies in the green...

04 June 2015 4,971 21 View

Where can I find when a three-digit patent class has been established by the U.S.PTO.?

I need to calcute a variable taking into accont the age of a Technology Class. Following Shane (2001), it can be measured as the number of years since thethree-digit patent class was established...

24 October 2014 6,349 1 View

Is there something similar to the Community Innovation Survey (CIS) for US companies?

As you know CIS is a valuable source of information for innovation studies. However, it doesn't provide data about US companies. Therefore, I would like to know whether similar data are also...

13 March 2014 404 3 View

What is the meaning of trademark "dates"?

Trademark documents present different "dates", filing date, registration date, priority date, first use in commerce, etc. Can someone explain at which type of "managerial" event each date might be...

07 March 2014 4,813 3 View

Does USPTO assign patent numbers in chronological order?

I would like to know if the the patent number is assigned in chronological order with respect to the issue date. A reference would be really useful.

30 October 2013 2,880 2 View

Do you think a trademark could be a good proxy for studying product's characteristics? Could you provide some references from the literature?

I would like to start a study focusing on the relationships between technologies and products developed by a company.

07 September 2012 8,282 2 View