Fatores determinantes na variação dos preços dos produtos contratados por pregão eletrônico
Arquivos
Data
2010-06
Autores
Faria, Evandro Rodrigues de
Ferreira, Marco Aurélio Marques
Santos, Lucas Maia dos
Silveira, Suely de Fátima Ramos
Título da Revista
ISSN da Revista
Título de Volume
Editor
Revista de Administração Pública
Resumo
A pesquisa buscou avaliar quais os fatores determinantes na variação dos preços dos produtos comprados através de pregão eletrônico. Para atingir os objetivos, testou-se a relação da variação dos preços com as variáveis: número de fornecedores, especificidade dos ativos, frequência das transações, quantidade, oportunismo dos agentes, tempo de existência e faturamento da empresa ganhadora e número de lances da disputa. Foram realizadas correlação de Pearson e regressão linear múltipla, com o intuito de explorar as relações entre as variáveis e construir um modelo para medir a variação dos preços. As variáveis número de fornecedores, especificidade dos ativos, quantidade e frequência das transações apresentaram um poder de explicação conjunta de 67,4% das variações dos preços. Assim, os órgãos públicos devem desenvolver ações que busquem maximizar o efeito destas variáveis com o objetivo de reduzir os preços pagos.
The research was intended to evaluate which were the determinative factors in the price variation of the products bought through electronic reverse auction bidding in the UFV ( Universidade Federal de Viçosa ). To reach the aims, the relation of the price variation and the following variables were tested: number of suppliers, specificity of the assets, transaction frequency, amount purchased, opportunism of the agents, time of existence and invoicing of the winner company, and the bids amount in the dispute. Pearson Correlation and Multiple Linear Regression were carried through with the intention to explore the relations between the variables and to construct a model to measure the prices variation. The results demonstrated that the number of suppliers, the specificity of the assets, the bought amount and the frequency of the transactions had a combined explanation influence on 67.4% of the variations of the prices practiced in biddings. As a result, the public agencies must develop actions that search to maximize the effect of these variables in the dispute, in order to obtain, in this way, greater economic profits through the reduction of the prices paid in their bidding processes.
The research was intended to evaluate which were the determinative factors in the price variation of the products bought through electronic reverse auction bidding in the UFV ( Universidade Federal de Viçosa ). To reach the aims, the relation of the price variation and the following variables were tested: number of suppliers, specificity of the assets, transaction frequency, amount purchased, opportunism of the agents, time of existence and invoicing of the winner company, and the bids amount in the dispute. Pearson Correlation and Multiple Linear Regression were carried through with the intention to explore the relations between the variables and to construct a model to measure the prices variation. The results demonstrated that the number of suppliers, the specificity of the assets, the bought amount and the frequency of the transactions had a combined explanation influence on 67.4% of the variations of the prices practiced in biddings. As a result, the public agencies must develop actions that search to maximize the effect of these variables in the dispute, in order to obtain, in this way, greater economic profits through the reduction of the prices paid in their bidding processes.
Descrição
Palavras-chave
Pregão eletrônico, Compras públicas, Nova economia institucional