求翻译：本文选用赫芬指数作为衡量多元化程度的指标，将绩效指标划分为盈利能力指标、发展能力指标、风险绩效指标及市场绩效指标，选取公司规模和经营年限为外生变量，建立线性回归模型。是什么意思？

In this paper selected the Herfindahl index as indicators to measure the degree of diversification, performance indicators divided into profitability indicators, development capacity, the risk of performance indicators and market performance indicators, select the size of the company and operating l

Use this index as a measure, Sheikh pluralism indicators of the extent of performance indicators, will be divided into profitability indicators, and the development of capacity indicators, risk performance indicators and performance indicators, market selection and size of the company for years in b

This article selects a hertz profuse index to take the weight multiplication degree the target, divides the achievements target into the profit ability target, the development ability target, the risk achievements target and the market achievements target, the selection company scale and the managem

This selection of Geffen index as a measure of diversity indices, indicators into profitability, capacity development indicators, risk indicators and performance indicators, select size of company and business span of exogenous variables, create a linear regression model.

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