Middle-School Children's Sources and Uses of Money

Despite their growing economic power, children's acquisition and use of money rarely has been investigated in academic research, although it has been a frequent topic in the media. This study (1) describes sources and uses of money children (age 10–15) receive; and (2) investigates the association of children's uses of money with their age, gender, family structure, and sources of money. The sources of money are associated with children's uses of it, but age, gender, and family situation do not relate to the way they use money. Consumer education should focus on the sources of children's money in relation to the way they use it.     

Experience with a simulator for training ammonia plant operators

A computer-based simulator was used for training operators prior to the start-up of a new fertilizer complex which includes a 1,350-MTPD ammonia plant, two 1,100-MTPD urea plants, and a steam and power generation plant with two 18-MW gas turbines. The simulator offered many benefits, which can be used for continued education of operators and engineering studies.     

More bang for the buck: Getting the most from accident investigations

An Incident Investigation system based on a combination of Fault Tree Analysis logic and the Deming Principles of Systems and Quality was developed during a three-year period. The system was given an excellent test in the investigation of the explosion of a tank car filled with methacrylic acid. In this case, the Event Tree constructed during the investigation was easily converted into a Fault Tree. The Fault Tree so constructed was then used to evaluate the effectiveness of proposed corrective changes to the production, loading, and analytical systems before the changes were actually implemented. By making use of these tools to guide the addition of feedback loops (“And” Gates in fault Tree terminology), the intrinsic safety of the methacrylic acid production and shipping system was greatly enhanced at a relatively low cost.     

Sharing versus collaborative economy: how to align ICT developments and the SDGs in tourism?

Great hopes have been placed in the sharing economy to provide a new business model based on peer-to-peer (P2P) exchanges of underutilized assets. As a model, the sharing economy has been expected to make significant contributions to sustainability, providing new opportunities for entrepreneurship, more sustainable use of resources, and consumer co-operation in tight economic networks. However, in recent years, digital platforms have turned into the most important actors in the global sharing economy, turning global corporations, such as AirBnB, Booking, or TripAdvisor into intermediaries controlling and profiting from most transactions. Focused on accommodation, this paper conceptualizes the sharing economy in comparison to the wider collaborative economy, and discusses its social, economic, environmental, and political impacts in comparison to the sustainable development goals. It concludes that the sharing economy has great potential to make very significant contributions to sustainability, though the model is increasingly being replaced by the collaborative economy, which performs as an extension and acceleration of neoliberal economic practices.     

Golf Versus Nongolf Club Operations: Benchmarks for 2014

With the club industry comprising of different types of clubs, a more in-depth analysis separating clubs with and without golf operations would be beneficial. Financial performance can be summarized via financial ratios. This study surveyed 115 clubs regarding their financial performance and calculated 24 financial ratios for 2014. The median profit margin of all clubs was at 1.65%. Clubs with golf operations reported a median profit margin at 1.73%, doubling that of the nongolf operations at 0.83%. T-tests using means of financial ratios showed a statistically significantly difference in only the food inventory turnover by days.     

供应链网络均衡模型

本文试图提出一种供应链网络的均衡模型。在这个模型里将充分考虑决策者的决策与他们各自独立的行为,并推导出供应链网络模型结构均衡的条件。