Abstract: In the demonstration of citizen science projects, researchers need to explain the project budget in detail, including the overall financing amount, specific budget items, and budget’s description. Based on the 850 citizen science projects and 3,356 budget items from the well-known public science platform—Experiment, this manuscript conducted three studies: (1) overall budget setting; (2) budget item setting; (3) budget text description analysis. Data mining, text mining, and econometric model are used to conduct a detailed study on the budget of citizen science projects and the impact on public willingness to participate. The empirical study shows that the overall amount has a positive impact on the public’s willingness to participate. And the richer the budget items, the more public participated in the campaign. A detailed description of the budget text expands the scale of participants and the amount of funds mobilized, but this effect presents an inverted U-shaped effect. The readability of the budget significantly increases the public's willingness to participate in citizen science projects. The subjective description of the budget text (relative to objective description) reduces the attractiveness of the project and has an inverted U-shaped effect; while relative to predictive description, factual description in the budget significantly increases the attractiveness of the project. This study shows the impact of budgets on citizen science and provides theoretical basis and practical reference for citizen science researchers to generate attractive budgets.

摘要： 在公众科学项目展示中，研究者需要对项目预算进行详细说明，包括总体融资金额、预算条目、预算描述等。为了深入分析预算对公众科学参与意愿的影响，采用来自知名公众科学平台Experiment上的850个公众科学项目及其3,356条预算数据，本文进行了三项研究：（1）预算金额设置；（2）预算条目设置；（3）预算的文本描述。使用数据挖掘、文本挖掘和计量方法，对公众科学项目的预算及对公众参与意愿的影响进行分析。实证研究表明，预算金额对公众参与意愿具有正面影响；预算条目越丰富，越能吸引更多公众参与项目。详细的预算文本描述扩大了公众科学参与者规模以及融得的资金量，但是这种效用呈现倒U型影响。而预算文本的易读性显著提升了公众参与公众科学项目的意愿。主观性描述（相对客观性描述）降低了项目的吸引力，并具有倒U型影响。相对预测性描述，在预算中采用事实性描述能够显著提升项目的吸引力。本文展示了公众科学项目预算的影响，为公众科学项目的研究者设置和撰写有吸引力的项目预算提供了理论依据和实践参考。