Purpose

This paper aims to examine how sample design affects the relative importance of firm and industry factors in explaining performance variations.

Design/methodology/approach

Using a sample of 14,204 Spanish firms over a 10-year time frame, this study uses partial sensitivity analysis to examine the biases in results as a consequence of three methodological relevant concerns: outliers, industry classification and period.

Findings

Results indicate that the industry effect, supported by the industrial organization theory, has been underestimated in the empirical tests.

Originality/value

This study examines the biases in results as a consequence of three methodological relevant concerns (outliers, sector classification and period), which have not been sufficiently studied to date. Moreover, the study provides some new evidence favourable to the Industrial Organization (IO) perspective, which could have been biased and underestimated by the literature, as most of the analyses do not consider the methodological issues studied in this paper.

中文翻译：

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企业和行业的影响：样本设计的重要性

目的

本文旨在研究样本设计如何影响企业和行业因素在解释绩效差异方面的相对重要性。

设计/方法/方法

本研究使用10年内14,204家西班牙公司的样本，通过部分敏感性分析来检验由于以下三个与方法学相关的问题（离群值，行业分类和时期）而导致的结果偏差。

发现

结果表明，在产业组织理论的支持下，产业效应在实证检验中被低估了。

创意/价值

这项研究检查了由于三个方法相关问题（异常值，行业分类和期限）而导致的结果偏差，这些问题到目前为止尚未得到足够的研究。此外，该研究提供了一些有利于工业组织（IO）观点的新证据，由于大多数分析都没有考虑本文研究的方法论问题，因此这些文献可能会被文献所偏and和低估。