The main purpose of the study is to highlight the new service development as a key determinant of diversification strategy in the hospitality industry. Successful new services strengthen the hotels' innovation orientation, constitute the basis for the future competitiveness, growth and survival,...

Improving energy efficiency in buildings is a major priority worldwide. The measures employed to save energy vary in nature, and the decision maker is required to establish an optimal solution, taking into account multiple and usually competitive objectives such as energy consumption, financial...

The improvement of energy efficiency in buildings is among the first priorities worldwide. To this end, several measures are available, and the decision maker faces a decision problem with multiple objectives having to compensate several energy, financial, and other factors in order to make a...

The optimal design of supply chain networks is often examined based on one or more economic or other criteria (e.g., cost, profit environmental impact, danger, time). However, the efficiency of the derived solutions is often ignored. In this work, a recursive DEA (RDEA) algorithm is presented,...

Organizations are open systems operating under conditions of substantial turbulence, risk (known unknowns), and uncertainty (unknown unknowns) and seeking to balance stability and coherence with flexibility and change in pursuit of higher levels of efficacy and routine excellence. In addition,...

Purpose Organizations and their members operate in increasingly complex, dynamic and even disruptive environments, with risk and uncertainty being major challenges. To that effect, data, information, knowledge, and respective competences are increasingly instrumental in enabling and sustaining...

The National Park of Dadia-Lefkimi-Souflion is one of the 27 protected areas of Greece, for which a management authority has been established. It is of major ecological value, due to the existence of a large number of birds of prey. Today, the protection status of the area does not exclude the...

According to classical definitions, clusters are geographic concentrations of interrelated companies, various suppliers, connected public and private institutions, universities and associations, which are working in a specific field. Nowadays, the business environment became more dynamic and...

Human society is on a collision course with nature, thus its sustainability is seriously questioned nowadays. To understand this problem better it is essential to define and measure sustainability. In this paper a model that uses fuzzy logic, called SAFE, is used to measure sustainability. The...