Uso de blockchain para mitigar o efeito chicote em cadeia de suprimentos

Abstract

This paper shows a way of using blockchain to mitigate the bullwhip effect in the supply chain. The bullwhip effect can lead to excess inventory investment, low customization of services, loss of sales, downtime of the transportation industry among other problems. It is necessary, an effective way to mitigate the problem and smooth the losses in the market. For this was developed a beer game simulator with the help of blockchain to store the data and transactions during the game. The simulator was developed with two modes, one in which it is possible to recover data from the blockchain to help with demand forecasting and the other way in which blockchain data can not is possible to recover data. Experiments were carried out with two profiles of users, a profile was of users who had no experience with beer game and another group with users who had experience with beer game. In each experiment the users played a game without the aid of blockchain to carry out forecast of demand and another match with the aid of blockchain. The results showed that in 3 of the 4 groups that used the simulator, there was a decrease in the problems caused by the bullwhip effect, which leads to the conclusion that blockchain is a good tool to aid in the sharing of information in supply chains and to help mitigate the bullwhip effect.