Preface to the Princeton Landmarks in Biology Edition vii Preface xi Symbols Used xiii 1. The Importance of Islands 3 2. Area and Number of Speicies 8 3. Further Explanations of the Area-Diversity Pattern 19 4. The Strategy of Colonization 68 5. Invasibility and the Variable Niche 94 6. Stepping Stones and Biotic Exchange 123 7. Evolutionary Changes Following Colonization 145 8. Prospect 181 Glossary 185 References 193 Index 201

The Theory of Island Biogeography

世界経済・社会統計 = World development indicators

Global Biodiversity Assessment

International trade. Statistics

The relative stability of differences in entrepreneurial activity across countries suggests that other than economic factors are at play. The present paper offers some new thoughts about the determinants of entrepreneurial attitudes and activities by testing the relationship between institutional variables and cross-country differences in the preferences for self-employment as well as in actual self-employment. Data of the 25 member states of the European Union as well as the US are used. The results show that country specific (cultural) variables seem to explain the preference for entrepreneurship, but cannot explain actual entrepreneurship. The present paper also introduces the remaining four papers of the special issue of the Journal of Evolutionary Economics, which center around the theme Entrepreneurship and Culture.

/pdf/entrepreneurship-and-its-determinants-in-a-cross-country-31qydnup1o.pdf

Entrepreneurship and its Determinants in a Cross-Country Setting

JEL-Classification: F14, L 83, Z12 Abstract: In this paper we discuss the effects of cultural - and particular religious - factors on tourist flows into the USA as the world largest tourism destination. To estimate this empirically we run an augmented gravity equation. Our results give evidence that the gravity equation is an adequate instrument to explain variations in international tourist flows. With respect to the aim of the paper, we have found that cultural proximity between country of origin and country of destination have positive effects on the tourism flows between these countries. In particular, after controlling for a set of geographic variables, people from countries with the same language (English) and the same high governmental rankings like the USA, travel more into the USA for holiday than people from other countries. Above all, we have clear and stable evidence that tourists from Christian countries prefer the USA as holiday destination much stronger than people from other countries. This supports our argument that people wishing to go on holiday to countries with a similar cultural and political background.

https://www.econstor.eu/bitstream/10419/25726/1/571262953.PDF

Cultural effects on inbound tourism into the usa: a gravity approach

In 2010, the Renewable Energy Directive (RED) came into force in the EU and establishes a framework for achieving legally binding greenhouse gas (GHG) emission reductions. Only sustainable biofuels can be counted towards Member State targets. The aim of this paper is to calculate realistic and transparent scenario-based CO2-emission values for the GHG emissions savings of palm oil fuel compared with fossil fuel. Using the calculation scheme proposed by the RED, we derive a more realistic overall GHG emissions saving value for palm oil diesel by using current input and output data of biofuel production (e.g. in South-East Asia). We calculate different scenarios in which reliable data on the production conditions (and the regarding emission values during the production chain) of palm oil diesel are used. Our results indicate values for the GHG emissions savings potential of palm oil biodiesel not only above the 19 % default and 36 % typical value published in RED but also above the 35 % sustainable threshold. Our findings conclude the more accurate GHG emissions saving value for palm oil feedstock for electricity generation to be 52 %, and for transportation biodiesel between 38.5 and 41 %, depending on the fossil fuel comparator. Our results confirm the findings by other studies and challenge the official typical and default values published in RED. As a result, the reliability of the Directive to support the EU’s low-carbon ambitions is being undermined, exposing the EU and commission to charges of trade discrimination and limiting the ability of Member States to achieve their legally binding GHG emission reductions.

/pdf/recalculating-ghg-emissions-saving-of-palm-oil-biodiesel-429kp6thod.pdf

Recalculating GHG emissions saving of palm oil biodiesel

We analyze whether biodiversity is enhancing the development process in developing countries (DCs) via increasing tourism receipts in a trade based endogenous growth framework. The underlying assumption is that a rich biodiversity – only if used sustainably – provides a comparative advantage in tourism for most DCs. The main empirical findings are that biodiversity while being significantly and positively correlated with inbound tourism receipts in DCs, has no significant relation with tourist arrivals. This can be interpreted as an indicator that mass tourism is not influenced by biodiversity whereas individual tourism (as the superior good) is. Consequently, we are able to show empirical a positive influence of sustainable tourism on economic growth. Therefore, it may be a promising development strategy to invest in biodiversity and attract high budget tourists.

/pdf/can-nature-promote-development-the-role-of-sustainable-4ck6ah47ku.pdf

Can nature promote development? The role of sustainable tourism for economic growth

We analyze whether biodiversity is increasing the receipts of tourism and thus is beneficial for developing countries (DCs). The underlying assumption is that a rich biodiversity provides a comparative advantage for most DCs. We use a simple trade theory framework. The model is supported by an empirical analysis. The main findings are that first DCs, being abundant of biodiversity, seem to have a comparative advantage in (sustainable) tourism, that second inci- dence of birds as the probably best explored taxonomic group has a positive impact on inbound tourism receipts per cap- ita, and that third the rate of endangered to total birds is negatively influencing tourism receipts. We draw some cautious policy conclusions.

/pdf/biodiversity-and-international-tourism-a-story-of-q3y5v3afsg.pdf

“Biodiversity and International Tourism: A Story of Comparative Advantage”#

During the last years, the renewable energy strategy of the European Union (EU) and the proposed policies and regulations, namely the Renewable Energy Directive (RED), have been heavily discussed among scientific circles and various interest groups. The sustainability of different biofuels and their contribution to the reduction of greenhouse gas (GHG) emissions and the whole renewable strategy has become one of the most controversial issues. RED requires that the greenhouse gas emissions associated with production and use of biofuels are at least 35% lower than those associated with the production and use of conventional fuels to be classified as 'sustainable' and therefore eligible for the mandatory blending scheme applied within the EU. In a recent working paper, we analyze the GHG emissions savings potential of rapeseed biodiesel. For this purpose, we ran a life cycle assessment of rapeseed biodiesel using the same basic methodology and background data contained in RED by considering the whole production chain from cultivation of the feedstock up to use of the biofuels. Unlike other studies, we refer only to publicly available and published data in our calculations. In order to ensure full transparency - again contrary to the vast majority of other studies - we provide a detailed documentation of all data. We follow a rather conservative approach by using average values and assuming common conditions along the supply chain in our scenarios. In most of the scenarios, rapeseed biodiesel does not reach the GHG emissions saving values using the formula contained in RED. Neither the RED typical value for rapeseed oil (45%) nor even the lower default value (38%) can be supported by the analysis. Furthermore, most of the scenarios indicate that rapeseed biodiesel does not reach the 35% threshold required by the EU Directive for being considered as sustainable biofuel. In the standard scenario, we calculate a GHG emissions saving value of not even 30% which is not only well below the GHG emissions saving values (default and typical) that can be found in RED but also far below the 35% threshold. To summarize, we are not able to reproduce the GHG emissions saving values published in the annex of RED. Therefore, the GHG emissions saving values of rapeseed biodiesel stated by the EU are more than questionable. Given these striking differences as well as the lack of transparency in the EU's calculations, we assume that the EU seems to prefer 'politically' achieved typical and default values regarding rapeseed biodiesel over scientifically proven ones.

https://www.econstor.eu/bitstream/10419/70134/1/720430488.pdf

Christoph Vietze

Papers

Cultural effects on inbound tourism into the usa: a gravity approach

Recalculating GHG emissions saving of palm oil biodiesel

Can nature promote development? The role of sustainable tourism for economic growth

“Biodiversity and International Tourism: A Story of Comparative Advantage”#

Uncertainties about the GHG emissions saving of rapeseed biodiesel