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Since Taiwan joined the WTO, many financial products started to issue in the stock market. With the rapid development of the electronic transaction platform, the business scope of the stock broker is diversified and international. Within the ten years in the Taiwan stock market, there are around 1,000 brokers and maintain at the amount. This indicates that the market is mature and saturated. For the severe price competition among brokers, there is big room for discount rate of the service charge to customer and this will also impact the profitability and market share of the stock broker. This research is to find out the influence among service charge discount rate, market share, and profitability. We will also try to regulate if there is liner relationship among the key three factors.
We take a Taiwan financial holding company as research sample. All statistics data come from the monthly operation and business records and document. The adopted statistic variables are market share, profitability, service charge discount rate, transaction ratio of the top-30 customers, electronic transaction sales percentage, liability sales percentage, and day-trading sales percentage. We cross check the relationship with statistics tools and regression for verification.
In the finding, the service charge discount rate has a positive influence to market share. Big service discount rate will increase the broker’s market share. The service charge discount rate has a negative influence to profitability. Higher service charge discount rate will decrease the broker’s profitability. We also found that the service charge discount rate does not have a liner relationship. At the initial stage, the discount rate will have positive influence to profitability, when reaching certain marginal point, the higher discount rate will lead to low profitability. The top-30 customer transaction percentage does not have non-liner relationship to profitability but it has non-liner relationship to market share. It means, at the early stage, high top-30 customer transaction percentage does not lead to good market share but will have a positive relationship after certain margin point. Electronic transaction sales percentage does not have liner relationship to profitability but has liner relationship to market share. At early stage, the increasing of electronic transaction sales percentage will decrease the market share, but after certain margin point, the market share will grow up.
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