The ecological pressure of humanity on the planet measured by ecological footprint has been enlarging, which upsurges environmental threats. At this point, green innovation emerges as an optimal solution to sustainable development which brings together economic growth and environmental protection. This paper explores the nexus between green innovation and ecological footprint for the case of the top 20 green innovator countries. As a comprehensive environmental sustainability indicator, the ecological footprint is employed to observe the environmental impacts of green innovation. We apply cross-sectional dependence tests, panel unit root tests and panel cointegration tests covering the period of 1993-2016. The results show that economic growth is the primary reason for environmental degradation while urbanization does not have a statistically significant effect. Renewable energy consumption has a moderating influence on ecological footprint. More importantly, environment-related technologies have a statistically significant effect on ecological footprint. Specifically, a 1% increase in environment-related technologies leads to a 0.129% decrease in ecological footprint. The findings of the study clearly demonstrate that it is possible to achieve economic growth while protecting the environment. The results of the study are expected to be motivating for countries' transition toward green innovation in that sustainable development can be achieved if countries invest in green innovation.

Turkey, an emerging economy, ranked 8th among the most visited countries in the world in 2017. Given the importance of the tourism sector in Turkey, it is of utmost importance to identify the dynamics of tourism demand to achieve sustainable tourism. The aim of this article is, therefore, to explore the demand-side factors that affect the number of international tourist arrivals to Turkey. To this end, an augmented gravity model has been employed to analyze the factors affecting the number of international tourists visiting Turkey from the top 25 originating countries from 1998 to 2017. The results show that the gravity model is very effective in explaining the tourist arrivals to Turkey. Empirical findings suggest that per capita income of both origin country and Turkey, relative exchange rate, and globalization positively affect the demand for tourism, while it is negatively affected by consumer price index, violence/terrorism, household debt level, and bilateral distance between Turkey and the origin country.

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