I think the GLOBE project is another option.

Hi Hasan 

There are several Studies. I think that GUESS is a good option:

http://www.guesssurvey.org/ or 

Conditions for Dynamic Entrepreneurship:

http://unctad.org/meetings/en/Presentation/cii2015_Kantis_en.pdf

I agree with Dario that 'Guess' could be the important source for reliable data. I attach a file of research report on Brazil. Also I should use the country wise GEM for example UK.

Also If you work on Asian Country, You could use the source of Asian SME Finance Monitor where Asian Development Bank (ADB) provides their updated research. 

Let me give you a different answer which will address key universal issues of SMEs:

The Importance of SMEs

There is no uniform and widely accepted definition of what constitutes an SME. The standards vary from country to country. Typically, SMEs are defined by an upper limit in the headcount and/or the sales revenues. An agreement is emerging, particularly within the United States, to classify a company as small if it has less than 50 employees and medium if the headcount is below 250. 

Regardless of its definition, we know that the overall impact of SMEs is overwhelmingly large. Uniformly, 95–99% of the total companies in any country are SMEs; they employ between 40% and 60% of the workers; and they contribute between 40% and 50% of the GDP.  In addition, they play a central role as a leading source of innovation and creativity.  For these considerations, I feel the SMEs deserve special   treatment.

Main Challenges Facing SMEs

The major issue regarding the strategic positioning that a firm needs to adopt is how an SME, which does not have access to major economies of scale, could compete with those who do. The answer resides in two very critical qualities that the cost infrastructure of a successful SME strategy should possess: modularity and scalability. Modularity means that we are able to operate extremely effectively with small quantities, which implies that we do not need large economies of scale to be productive. Scalability means that we can expand the volume of our operations by reproducing the same successful modular format, while maintaining our cost-effectiveness without constraining our possible growth.

Upon request, I will send you a training program called the Delta Model:Putting Customers before Products where I address most of these issues facing SMEs anywhere in the world. The Delta Model is the most advanced business strategy in the world.

Hi Hasan,

Please visit following sites and surely it will be helpful to your great move:

1-      http://www.infoentrepreneurs.org/en/guides/measure-performance-and-set-targets/

2-      http://www.econlib.org/library/Enc/Entrepreneurship.html

3-      http://unu.edu/publications/articles/are-entrepreneurial-societies-also-happier.html

4-      http://articles.economictimes.indiatimes.com/keyword/entrepreneurship

5-      https://hbr.org/2011/09/entrepreneurs-find-opportunity/

6-      https://www.sba.gov/starting-business/how-start-business/entrepreneurship-you

http://www.sciencedirect.com/science

Regards,

Dr Sangeeta Sharma

Dear colleagues,

Thank you all for your useful information. These links will help me a lot to have better understanding about entrepreneurship activity.