Regional mobility of economic production factors accelerates the globalization of the associated economies and impacts firm diffusion trends. The Belt and Road Initiative aims to facilitate the orderly flow of economic production factors along the Sino-Europe Economic Corridor. However, little is known about the effects of locational accessibility on firm relocations with such an initiative. Conceptualizing locational accessibility based on elementary production factors, this paper proposed a methodological framework to analyze the potential firm diffusion trends by applying the percolation theory in a multimodal freight supernetwork. The empirical analysis concerns two typical manufacturing industries along the Sino-Europe Economic Corridor. The results show that the percolation transition happens during the diffusion of the two manufacturing industries considering land rent, labor cost, and freight transport cost as the elementary production factors. It is found that the improvement in transport accessibility accelerates the diffusion trends of the manufacturing industries, although the bottleneck regions for the diffusion of both industries do not change comparatively. The proposed methodological framework acts as an efficient testbed for analyzing the regional diffusion trends of different types of industries.

经济生产要素的区域流动性加速了相关经济体的全球化并影响了企业的扩散趋势。``一带一路''倡议旨在促进经济生产要素在中欧经济走廊上的有序流动。但是，对于这样的一项举措，关于位置可达性对公司搬迁的影响知之甚少。本文基于基本生产要素概念化了位置可达性，提出了一种方法框架，通过在多式联运的货运超级网络中应用渗流理论来分析潜在的企业扩散趋势。实证分析涉及中欧经济走廊沿线的两个典型制造业。结果表明，以土地租金，劳动力成本和货运成本为基本生产要素，这两个制造业的扩散发生了渗流过渡。发现交通便利性的提高加速了制造业的扩散趋势，尽管两个行业扩散的瓶颈区域并没有相对改变。拟议的方法框架是分析不同类型行业的区域扩散趋势的有效试验平台。尽管这两个行业扩散的瓶颈区域都没有相对改变。拟议的方法框架是分析不同类型行业的区域扩散趋势的有效试验平台。尽管这两个行业扩散的瓶颈区域都没有相对改变。拟议的方法框架是分析不同类型行业的区域扩散趋势的有效试验平台。