This master thesis analyzes the influence of psychological barriers of consumers from Germany, Sweden, and Iran for using sustainable transportation modes. Climate change has started to change the way people travel. Yet prior research has shown that consumers from all over the world lack consistency between their behavioral intention and their actual behavior. In the case of traveling, this means that a significant number of consumers intends to use sustainable transportation modes, but fails to use them in the end. The reasons for this so-called intention-behavior gap in consumers' minds have been researched successfully and frequently in the past two decades. The novelty of this present thesis is the international comparison of travelers from three different countries and the explicit focus on voluntary travel. The according research questions are: RQ 1:  To what extent is there a gap between the intention and behavior of leisure travelers          regarding choosing sustainable transportation vehicles? RQ 2:  Which group of consumers (inclined abstainers or disinclined actors[1]) plays the bigger      role in creating this gap? RQ 3:  What are the determinants and barriers of using more sustainable transportation     vehicles in leisure transportation? RQ 4:  How is the sustainable behavior of leisure travelers in Sweden, Germany, and Iran            different? To answer the research questions, an online survey in Swedish (n1 = 130), German (n2 = 128), and Persian (n3 = 127) language was carried out ( ∑ n = 385) in April 2020 with a convenience sampling method and analyzed in May 2020. The results show that there is a slightly positive intention-behavior gap in the Swedish sample and a slightly negative intention-behavior gap in the Iranian sample. In the German sample, no significant intention-behavior gap has been found. Moreover, a higher level of environmental attitude, a higher level of environmental knowledge, a higher level of perceived effectiveness (of the consumers' own actions), and a higher level of social norms increases the intention of leisure travelers in Sweden, Germany, and Iran to use sustainable vehicles for leisure traveling - both for short and for long trips. The impact of perceived value and perceived price of sustainable transportation modes, as well as the impact of consumers' sustainable lifestyle on the on the travel intention are not supported in all three countries. Additionally, distance between origin and destination has been found to moderate the impact of determinants on intention. The moderating role of distance also varies in different countries. [1] See the literature review chapter for an explanation

This bachelor’s thesis is a quantitative study examining the factors influencing the Green Purchase Intention of (green) skincare among European consumers. The underpinning theory for this paper was the Theory of Planned Behavior and its influencing constructs such as Attitude, Subjective Norm, and Perceived Behavioral Control, as well as various selected determinants such as Environmental Concern, Environmental Knowledge, Health Concern, Injunctive Norm, Descriptive Norm, Electronic Word-of-Mouth, Price Sensitivity, Availability, and Perceived Consumer Effectiveness. The determinants were selected after conducting a literature review that primarily consisted of secondary data in the form of research articles dealing with the same research area of Green Purchase Intention. In order to collect primary data relevant to this study, an online survey in the form of a questionnaire was employed. Overall, 385 respondents from various European countries took part in this study. The survey sample was statistically tested using the SPSS AMOS and SPSS software. This was done in order to utilize the data collected fully. Therefore, two hypothesis models were constructed for this study. The results of Model 1, which were tested using SPSS AMOS denoted that Attitude had a significant relationship with Green Purchase Intention of green skincare products. The results of Model 2, which were tested using SPSS showed that Environmental Concern, Environmental Knowledge, Health Concern, and Perceived Consumer Effectiveness had a significant positive relationship with Green Purchase Intention. Thus, as a result, this study offers findings that manufacturers and retailers of green skincare could use to advance their marketing strategies. Primarily, it can be argued that green skincare brands should focus on targeting consumers who are already environmentally conscious rather than trying to gain over consumers with no environmental knowledge and concern. However, we do not deem our results sufficient enough to allow us to provide further managerial contributions.