Differences between Big and Small Enterprises
Small businesses as a group change through a cycle of births and deaths. In the case of big enterprise, change is through expansion or contraction.
Small business risk or reward estinate is done by the individual owner who either gets profits or loss, while in large corporations, the risk or reward calculation is done by employee-managers. Such judgements has no direct stake in the livelihood of the owner and his family.
Small business has no little or no economic power. On the other hand, big business has 
tremendous influence on the economy, including the political sector: For example, the transnational corporations control our global economy. In many poor countries, transnational or multinational corporations can have their men elected to top government positions. They have enormous funds to influence the results of the election in their favor.
Small business serves markets which big business does notlike to serve or cannot serve effectively.
. The other one is the bigger small business
where the owne manily directs the work of the employees. Small business it is privately owned and it has few or no layers or management. Generally it has insufficient resources to dominate its field of business.