In an economically developing world, the process of modernization has been proven to change people’s cultural and political values. Political scientists Ronald Inglehart and Christian Wetzel’s revised theory of modernization shows evidence that people’s political and cultural values move along two dimensions in a predictable pattern. Economic development shift people’s values from traditional and survival toward more secular-rational and self- expressive. This rise in post-material values has unknown effects on people’s mental health. Using Esping-Andersen’s theory on welfare state regimes the aim of this study is to both examine what effect post-material values have on mental health and, furthermore, if this effect plays out differently in different welfare state regimes. This was done using regression analysis based on data from a large number of countries from all over the world. The results of the analysis show that a rise in post-material values is positively correlated with worse mental health. But when welfare state regimes were brought into the model the relationship between post-material values and mental health did not stay the same but varied in its effect across the different regimes. The conservative welfare state regime stood out as the regime in which post-material values generated the worst mental health. On the whole, results indicate that the relationship between post-material values, welfare state regimes and mental health is a very complex relationship that is in need of further examination.

This master's thesis is about the success of sharing economy in the accommodation segment in Prague. The thesis is based on theories conceptualizing sharing economy as a result of social and value change, not only as technological one. Using online review data, the user experience of shared accommodation via Airbnb and traditional via Booking are compared. Analysis is conducted with focus on users' satisfied needs and fulfilled values. For processing the data, text mining techniques (topic modelling and sentiment analysis) were employed. The major result is that in Prague the models of sharing economy accommodation meets the growing need in society to fulfil post-material values in the market much better than the models of traditional accommodation (hotels, hostels, boarding houses). In their experiences, Airbnb users reflect social and emotional values more often, even though most sharing economy accommodations in Prague do not involve any physical sharing with the host. The thesis thus brings a unique perspective on the Airbnb phenomenon in the Czech context and contributes to the discussion of why the market share of the sharing economy in the accommodation segment in Prague has been growing, while traditional models stagnated.