Opinion polls have been the bridge between public opinion and politicians in elections. However, developing surveys to disclose people's feedback with respect to economic issues is limited, expensive, and time-consuming. In recent years, social media such as Twitter has enabled people to share...

The notion of economic evolution can be seen as encompassing all the processes of change of the fundamental parameters of an economic system. So, any change in technology, preferences or institutions determines an evolutionary change for the economy. The formalization of those structural...