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→国家健康状况和产品复杂性指标 Metrics for country fitness and product complexity
Pietronero and collaborators have recently proposed a different approach. These metrics are defined as the fixed point of non-linear iterative map. Differently from the linear algorithm giving rise to the ECI, this non-linearity is a key point to properly deal with the nested structure of the data. The authors of this alternative formula claim it has several advantages:
Pietronero and collaborators have recently proposed a different approach. These metrics are defined as the fixed point of non-linear iterative map. Differently from the linear algorithm giving rise to the ECI, this non-linearity is a key point to properly deal with the nested structure of the data. The authors of this alternative formula claim it has several advantages:
皮埃特罗内罗（Pietronero）和他的合作者最近提出了一种不同的方法，被定义为非线性迭代映射的不动点。这种非线性特性不同于线性算法，是正确处理数据嵌套结构的关键。作者声称这种替代方法有以下几个优点:
* Consistency with the empirical evidence from the export country-product matrix that diversification plays a crucial role in the assessment of the competitiveness of countries. The metrics for countries proposed by Pietronero is indeed extensive with respect to the number of products.
* Consistency with the empirical evidence from the export country-product matrix that diversification plays a crucial role in the assessment of the competitiveness of countries. The metrics for countries proposed by Pietronero is indeed extensive with respect to the number of products.
与出口国家产品矩阵的经验证据相一致，即多样化在评估国家竞争力中起着至关重要的作用。Pietronero建议的国家/地区指标在产品数量方面确实很广泛。
* Non-linear coupling between fitness and complexity required by the nested structure of the country-product matrix. The nested structure implies that the information on the complexity of a product must be bounded by the producers with the slowest fitness.
* Non-linear coupling between fitness and complexity required by the nested structure of the country-product matrix. The nested structure implies that the information on the complexity of a product must be bounded by the producers with the slowest fitness.
国家产品矩阵的嵌套结构所需的适应性和复杂性之间的非线性耦合。嵌套结构意味着有关产品复杂性的信息必须由适应性最慢的生产者限制。
* Broad and [[Pareto distribution|Pareto]]-like distribution of the metrics.
* Broad and [[Pareto distribution|Pareto]]-like distribution of the metrics.
指标的广泛分布和'''<font color="#ff8000">帕累托式分布 Pareto Distribution</font>'''。
* Each iteration of the method refines information, does not change the meaning of the iterated variables and does not shrink information.
* Each iteration of the method refines information, does not change the meaning of the iterated variables and does not shrink information.
该方法的每次迭代都会精炼信息，但不会更改迭代变量的含义，也不会缩小信息。
The metrics for country fitness and product complexity have been used in a report of the Boston Consulting Group on Sweden growth and development perspectives.
The metrics for country fitness and product complexity have been used in a report of the Boston Consulting Group on Sweden growth and development perspectives.
波士顿咨询集团(Boston Consulting Group)关于瑞典增长和发展前景的一份报告使用了国家健康和产品复杂性的衡量标准。
波士顿咨询集团(Boston Consulting Group)在一份关于瑞典增长和发展前景的报告中使用了国家健康和产品复杂性的衡量标准。
==特征 Features==
==特征 Features==