“…Although transportation infrastructure may reshape business activities, leading to enhanced economic growth [14], there is little is known about the impact of transportation infrastructure construction on micro enterprises and their sustainable development. Most of the related research has been focused on the influence of geographical distance on micro enterprises' payout policy [15], venture capital investment [16], audit quality [17], analyst coverage [18], and the accuracy of analyst's forecasts [19], while HSR is represented as an effective way to reduce spatial and geographical distance [1,10], and the spatiotemporal squeezing effect generated by HSR has been shown to significantly improves the accessibility of the local firms [20]. Prior literature about the opening of HSR has shown that it will significantly improve enterprises' CSR performance [21,22], and increase the value of tourism firms [23].…”