Abstract Many studies analyse factors (such as corruption, competitiveness, transaction costs), which are influencing public procurement efficiency. The purpose of this paper is to find out, what the main factors are in Slovakia that are influencing public procurement efficiency, and based on our analysis, we will also estimate what is the impact of each factor on the efficiency of public procurement in Slovakia. The research for this paper was executed in three stages. We began with a small number of face-to-face in-depth interviews with specialist procurement advisors to contracting authorities. In the second stage, we created draft questionnaires for contracting authorities and for suppliers, and once we tested questionnaires, it was sent to 13,571 suppliers and to 4,300 contracting authorities. In the last stage, we used various types of analyses to examine identified factors. There is significant agreement between suppliers and contractors that the two main factors causing inefficiencies are excessive bureaucracy and corruption or other ethical shortcomings. It is shown that insufficient competition, and the excessive use of the lowest price criterion for selecting winning bids, add further inefficiencies. Savings are greatest when there are between 6 and 8 bidders. E-auctions generally produce larger savings than more traditional methods, but Slovak procurement procedures are costly, compared to most other EU states. This paper contributes to the understanding of what are the core factors which may influence public procurement efficiency. It also provides valuable information for government officials on how to change public procurement rules in order to achieve higher efficiency.

中文翻译：

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决定斯洛伐克公共采购效率的因素

摘要许多研究分析了影响公共采购效率的因素（例如腐败，竞争力，交易成本）。本文的目的是找出影响斯洛伐克公共采购效率的主要因素是什么，在我们的分析基础上，我们还将估算每个因素对斯洛伐克公共采购效率的影响。本文的研究分三个阶段进行。我们从与承包商当局的专业采购顾问进行少量面对面的深度访谈开始。在第二阶段，我们为订约当局和供应商创建了调查表草稿，测试了问卷后，将其发送给了13,571个供应商和4,300个订约当局。在最后阶段 我们使用了各种类型的分析来检查已确定的因素。供应商和承包商之间达成了显着的共识，即导致效率低下的两个主要因素是官僚主义过度，腐败或其他道德缺陷。结果表明，竞争不足，以及过度使用最低价格标准来选择中标，进一步增加了效率。当有6至8个竞标者时，节省最大。与大多数其他传统方法相比，电子拍卖通常可以节省更多费用，但与大多数欧盟国家相比，斯洛伐克的采购程序成本高昂。本文有助于理解哪些因素可能影响公共采购效率。