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This study aims to formulate a mechanism design in the derivatives market, summarizing a framework to set up the Brazilian electricity futures market.

This exploratory study formulates a mechanism design in the derivatives market, summarizing a framework to set up the Brazilian electricity futures market.

The results show a positive economic outcome for the creation of the Brazilian futures electricity market.

The main feature in this work is to summarize a framework to set up the Brazilian electricity futures market applying mechanism design, applicable in other countries. The features of the mechanism are the space of expected results (Z), the strategies to survey the environmental space (θ) and the mechanism design – messages space (M).

This paper aims to investigate the link between accounting, religion and art to understand the managerial approach of the Confraternity of Corpus Domini of Urbino and the phenomenon of art commissioning between 1465 and 1513.

This study is based on the interpretive historical method used to understand, through accounting, the managerial role of confraternities within the economic activity of art commissioning. To this purpose, the present analysis is based on a primary source, represented by the book of revenues and expenses, named B1 (1465–1513).

The analysis has provided evidence of the role of Urbino’s Confraternity in supporting art commissioning and its capacity to invest significant resources in favor of the social, religious and institutional environment of the time. Results show the connection between Urbino’s Confraternity and painters based on their commissioning agreements, the relation between painters and the Ducal Court and, finally, the role of the Duke of Urbino in funding the Confraternity’s initiatives for painters. Thus, this study highlights the major role played by Urbino’s Confraternity in art commissioning, an instrumental part of the Confraternity’s mission.

This paper presents a unique case study that brings out the managerial approach in art commissioning through accounting documents which make activities and links visible.

This study aims to demonstrate that gamification applied to an environmental behavior can create a habit. For this, it is necessary to determine the connection between traveler satisfaction and the different kinds of stimulus (extrinsic, intrinsic and internalized extrinsic).

Survey data was gathered from gamers invited to answer a questionnaire after using an app in field experimentation in pilot cities in France, Spain and Portugal designated by the UrbanWaste committee (European Project). All data were studied using path equation modeling in AMOS software to test the study's dimensions and proposed research model.

This study showed that, although gamification tools may be necessary to generate a habit in the first phase, these tools are superfluous when this habit is internalized.

This study's originality lies in the relationship between traveler satisfaction with gamification and the generation of an environmental practice that also contributes to forming a positive image of the host destination.

本研究旨在证明游戏化在环境行为中的应用可促使环保习惯的形成。因此, 了解游客满意度和不同种类刺激 （外在的、内在的和内化的外在的）的关系十分重要。

在UrbanWaste委员会（欧洲项目）指定的法国、西班牙和葡萄牙的试点城市进行现场实验后, 研究小组从受邀答题的玩家中收集调查数据。所有数据都使用Amos软件中的路径方程建模进行研究, 以此来测试研究的维度和先前提出的研究模型。

本研究表明, 尽管游戏化工具可能在第一阶段是形成环保习惯所必需的, 但当这种习惯被内化时, 这些游戏化工具是多余的。

本研究的独创性在于了解游客游戏化满意度与环保行为产生的关系。这种环保行为同时有助于景区建立正面积极的形象。