Author: Diana-Maria Drigă

Introduction. The concept of resilience has represented during the recent years a leading concern both in Romania, within the European Union and worldwide. Specialists in economics, management, finance, legal sciences, political sciences, sociology, psychology, grant a particular interest to this concept. Multidisciplinary research of resilience has materialized throughout the time in multiple conceptualizations and theorizing, but without being a consensus between specialists in terms of content, specificity and scope.

Aim of the study. This paper aims to highlight a few mThrough this paper it is intended to clarify the concept of resilience, achieving an exploration of the evolution of this concept in ecological, social and economic environment. At the same time, the paper presents aspects of feedback mechanisms and proposes a formalization of resilience using the logic and mathematical analysis.
Keywords: resilience, systems, feedback, inverse connection, adaptive capacity, fragility, antifragilitaty, robustness
JEL Classification: A10, O17, P00

Introduction. Although, it is widely used, there is no consensus among researchers in defining the concept of sustainability The various scientific debates available in the literature consider that the concept of sustainability should be approached in an integrated manner, which involves the maintenance and the improvement of the welfare at the economic, environmental and social level, taking into account both the importance of the processes and the output of the system.

Aim of the study. The paper aims to clarify the concept of sustainability through an examination of different opinions and controversies existing in the literature regarding this concept. Also, the paper presents the concept of sustainability analyzed from the perspective of system and proposes a definition of sustainability by exposing the sufficient logical conditions for a system to be qualified as a sustainable system. Are analyzed concepts such as: logically vivid system, autopoiesis, weak sustainability, strong sustainability, sustainable development.
Keywords: system, sustainability, sustainable development, logical conditions
JEL Classification: A10, O17, P00