Compare the volume of the Sun with the volume of interstellar space it occupies.Is the occupied percentage large or small? (Note: the radius of the 
;the nearest star is 4.6 light-years away; 
Definitions:
Market Shares
The segment of the market in which a particular company or product holds dominance.
Competitive Spectrum
The range of competition in a market, varying from monopolies to perfect competition.
Cartel
An agreement among competing firms to control prices or exclude entry of a new competitor in the market, often to maximize their own profits at the expense of consumers.
Oligopolists
Firms or entities that are part of a market structure where a small number of companies or sellers dominate the supply of a particular product or service.
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