@article{(Open Science Index):https://publications.waset.org/pdf/3319,
	  title     = {Changing of Macroeconomics under Influence by Internal and External Powers},
	  author    = {E. Pyle},
	  country	= {},
	  institution	= {},
	  abstract     = {This paper shows that the economy of any country
can be presented as three different shells such as: economic shell of a
big, a medium and a small business. The new concepts were
introduced such as: volume of an economic shell, coefficient of
shell-s expansion (compression) etc. These shells can expansion or
compress under action by internal or external powers and when shell
expansions - it means the rising of a business activity and
compression shows us that economy goes on recession. This process
of an expansion or a compression can develop in the various ways
like linear, logarithm or any other mathematical laws.},
	    journal   = {International Journal of Economics and Management Engineering},
	  volume    = {3},
	  number    = {6},
	  year      = {2009},
	  pages     = {696 - 703},
	  ee        = {https://publications.waset.org/pdf/3319},
	  url   	= {https://publications.waset.org/vol/30},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 30, 2009},