Hi Evgeniya, you can try with www.doaj.org where millions of research papers are availabley free. Regards

Thanks a lot.

 i would request you to browse this paper, and i am sure it will be of help http://www.columbia.edu/~jb3064/papers/2011_Conditional_markov_chain_and_its_application_in_economic_time_series_analysis.pdf

As far as economic activities are concerned, economic growth with respect to the dynamics and management of mechanized industries can be considered as an upshot of gross economic activities. This is macroeconomic however, and I will suggest you to find the following paper: Ponzio, S., & Di Gennaro, L. U. C. A. (2004, September). Growth and Markov chains: an application to Italian provinces. In Second PhD Conference in Economics, Research in Economics: Aims and Methodologies (pp. 23-25). 

http://www3.unisi.it/criss/download/meeting2004/papers/ponzio.pdf

Dear Evgeniya,

Thomas Sargent reviews here the use of Markov chains in economics: http://quant-econ.net/jl/finite_markov.html

Here are some more books and  articles:

https://www.researchgate.net/profile/Bernard_Fingleton/publication/4994502_Specification_and_Testing_of_Markov_Chain_Models_An_Application_to_Convergence_in_the_European_Union/links/0deec5352b51be518e000000.pdf

http://cds.cern.ch/record/293599

http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9468869

Article Specification and Testing of Markov Chain Models: An Applica...

Thank you all of you a lot, very useful.