1. Review and comments on previous research

It’s not difficult to find that there are mainly two kinds of evaluation approaches on competitiveness when we take a review on previous research.

1.1 Single-factor based evaluation and analysis

Single-factor based evaluation and analysis is the method that takes one factor as evaluation index to reflect competition situation of research objects. Representative methods and indexes are as follow：profitability，market share，output capacity，export & import data，etc.

When competitiveness evaluated by single-factor based methods，on account of less related data，it’s simple and easy to handle. But for competitiveness is a capacity system，the single-factor evaluation method is lack of comprehensiveness.

1.2 Multi-factor based evaluation and analysis

For competitiveness is evaluated by combined factors，the method also is called comprehensive approach. For example，World Competitiveness Year Book（WCY）released by the International Institute for Management Development（IMD），mainly uses comprehensive approach to evaluate competitiveness. Michael E. Porter’s evaluation of industry competitiveness and enterprises competitiveness also is a comprehensive evaluation method which takes macro environmental factors，industry & policy conditions and government & enterprise factors into account. Many China’s domestic scholars who also take the method，such as Zheng Gang & Jiang Chunlin use for reference of domestic & overseas advanced theories and measures to build a systematic evaluation index that includes obvious competitive capacity，potential competitive capacity，competition environment and competition situation^［1］.

On the other hand，some guilds and consulting companies take surveyor’s pole approach to e