Do pollution havens restrict tourism-led growth? Achieving sustainable tourism via a mix of environmental and tourism policies

2019 ◽  
Vol 26 (7) ◽  
pp. 1175-1196
Author(s):  
Yoshihiro Hamaguchi
Keyword(s):  
Growth Rate ◽  
Growth Model ◽  
Environmental Quality ◽  
Rate Increase ◽  
Sustainable Tourism ◽  
International Tourism ◽  
Location Choices ◽  
Emission Permit ◽  
Polluting Firms ◽  
Pollution Havens

Using an R&D-based growth model with endogenous location choices and movement of tourists, we investigate the effect that a grandfathered emission permit and an airfare including alien tax have on international tourism. We find that improved environmental quality, achieved by the restricted allocation of grandfathered permits, leads to tourism-led growth. That is, both the number of tourists and the tourism growth rate increase. By contrast, we find that worsened environmental quality, caused by generous allocation of grandfathered permits and reduced airfares including alien tax, leads to the creation of pollution havens because the policy prompts polluting firms to relocate to the area with the respective regulations. Our findings imply sustainable tourism can be achieved when the respective environmental and tourism policies are implemented.

Eco-evolutionary adaptations of ochotonids (Mammalia: Lagomorpha) to islands: new insights into Late Miocene pikas from the Gargano palaeo-archipelago (Italy)

2020 ◽  
Author(s):  
Blanca Moncunill-Solé
Keyword(s):  
Climate Change ◽  
Growth Rate ◽  
Late Miocene ◽  
Ecological Niche ◽  
Rate Increase ◽  
The Body ◽  
Evolutionary Patterns ◽  
Selective Pressures ◽  
Extant Species ◽  
Management And Conservation

Abstract Climate change strongly affects the range of ochotonids (Order Lagomorpha), fragmenting their habitats and restricting them to ecological islands. The present paper discusses the adaptations of extinct ochotonids to insular stressors, providing baseline data for the management and conservation of extant species. For this purpose, the body mass (BM) and locomotion of the endemic Prolagus apricenicus and Prolagus imperialis from the Gargano palaeo archipelago (Late Miocene) were assessed. P. apricenicus was a small-sized ochotonid (BM 150–250 g) and P. imperialis was probably the largest Prolagus that ever lived (BM 500–750 g). The eco-evolutionary BM dynamics suggest a targeted ecological niche for P. apricenicus, whereas the BM of P. imperialis rose abruptly as a result of growth-rate increase. In both species, the locomotion was stable and less cursorial, with leaping skills, resembling extant rocky ochotonids. Convergent eco-evolutionary patterns are observed in extinct insular ochotonids, concerning an increase of BM (giants), more efficient chewing, less cursorial and more stable locomotion, leaping skills, as well as a slower life history (longer lifespan). Such adaptations are triggered by the specific selective pressures of insular regimes. The present results point to the long-lasting insular Prolagus species as reference taxa for addressing the management of extant rocky ochotonids.

Environmental quality and energy import dynamics

2019 ◽  
Vol 31 (3) ◽  
pp. 665-682 ◽  
Author(s):  
Andrew Adewale Alola ◽  
Kayode Kolawole Eluwole ◽  
Uju Violet Alola ◽  
Taiwo Temitope Lasisi ◽  
Turgay Avci
Keyword(s):  
Environmental Quality ◽  
Geographical Location ◽  
Tourism Development ◽  
International Tourism ◽  
Causality Test ◽  
Content Type ◽  
Mediterranean Countries ◽  
International Tourist ◽  
Global Tourism ◽  
Policy Direction

Purpose The geographical location and the ambiance of the Coastline Mediterranean Countries (CMCs) advantageously present the region as a tourist destination with rich cultures. The paper aims to discuss this issue. Design/methodology/approach As such, this study investigates the dynamics of energy import and environmental quality in relation to international tourism development for nine CMCs over the period 1995–2013 using a pooled mean group approach. Findings Although the impacts of energy import, CO2 (here as environmental quality) and GDP on international tourism receipts are observed to be significant and negative, international tourist arrival expectedly exerts positive and significant impact, all at the adjustment speed of 0.19. A heterogeneously robust Granger non-causality test further reveals a strong one-directional causal relationship from energy import to tourism receipts. Research limitations/implications The dynamics of the energy market amidst persistent evolution of new source(s) of energy would evidently play a significant role in the region’s tourism sector. It then suggests policy direction to governments of the region and by extension the global tourism market. Originality/value By providing insight into the nexus of environment, energy and tourism development, the current study is the first that addresses the concern in the context of the CMCs.

PATENT LENGTH AND PRICE REGULATION IN AN R&D GROWTH MODEL WITH MONOPOLISTIC COMPETITION

2013 ◽  
Vol 18 (1) ◽  
pp. 1-22 ◽  
Author(s):  
Jinli Zeng ◽  
Jie Zhang ◽  
Michael Ka-Yiu Fung
Keyword(s):  
Growth Rate ◽  
Growth Model ◽  
Patent Protection ◽  
Monopolistic Competition ◽  
Policy Instrument ◽  
Price Regulation ◽  
Monopoly Pricing ◽  
Patent Length ◽  
Variety Expansion ◽  
Welfare Ranking

This paper considers the effects of patent length and price regulation in an R&D growth model with variety expansion. Innovation requires lower bounds on patent length and price. Increasing patent duration promotes growth; increasing the cap on the price of patented products promotes growth below the monopoly-pricing level. Each policy instrument can raise welfare unless excessively used, and their welfare ranking depends on parameterizations. It is desirable, on welfare grounds, to limit patent protection along both dimensions, namely by limiting patent length and capping the price of patented products. Such limits raise welfare despite reducing the growth rate.

Nickel Alloy Crack Growth Correlations in BWR Environment and Application to Core Support Structure Welds Evaluation

2008 ◽  
Author(s):  
Raj Pathania ◽  
Robert G. Carter
Keyword(s):  
Growth Rate ◽  
Stress Intensity ◽  
Crack Growth Rate ◽  
Crack Growth ◽  
Growth Model ◽  
Thickness Direction ◽  
Support Structure ◽  
Nickel Base ◽  
Crack Growth Model ◽  
Crack Growth Rates

An intergranular stress corrosion cracking (IGSCC) growth model for unirradiated nickel-base alloys (Alloys 82, 182 and 600) in boiling water reactor (BWR) environments has been developed by EPRI. This model has been used for assessment of the crack growth rates in BWR nickel base austenitic alloys with particular application to the BWR shroud support structure materials and welds, including attachments to the reactor pressure vessel fabricated from these alloys. However, the crack growth model can be used for other components with like materials in BWR environments provided that specific parameters such as stresses and stress intensity factor (KI) distributions are determined. The methodology involves development of crack growth disposition curves that can account for the variability of important IGSCC parameters to provide a conservative, yet realistic assessment of crack growth rate in BWR environments. An extensive nickel base alloy crack growth rate database was developed from data generated through the peer review process and includes both experimental data points and in-plant crack arrest verification system data. Most of the data in the database have reasonable definition of environmental conditions and other important crack growth parameters thus permitting a more realistic generic crack growth model to be developed. Although most of the data is for Alloy 182, it bounds the crack growth rate of Alloy 82 and Alloy 600. The database was used to derive crack growth disposition curves under normal water chemistry (NWC) and hydrogen water chemistry (HWC) conditions. The disposition curves have two stress intensity regimes; one for KI < 25 ksi√in where the crack growth is KI-dependent and one for KI > 25 ksi√in where the crack growth is KI-independent. The crack growth disposition curves were used together with a crack growth estimation methodology to determine the crack propagation of the BWR shroud support structure welds which are fabricated from Alloy 82/182. The steps involved in the development of the methodology include determination of residual stresses and operating stresses, development of stress intensity factor (KI) solutions for crack propagation in the through-thickness direction and estimation of crack growth rates. This methodology was applied specifically for crack growth in the through-thickness direction. Application of this crack growth model to BWR shroud support structure welds H8 and H9 indicates that there is an adequate time period between inspections before initial cracks of ≤10% through-wall thickness reaches the allowable flaw sizes, particularly for HWC conditions.

scholarly journals The effect of shell secretion rate on Mg / Ca and Sr / Ca ratios in biogenic calcite as observed in a belemnite rostrum

2017 ◽  
Vol 14 (1) ◽  
pp. 89-97 ◽  
Author(s):  
Clemens Vinzenz Ullmann ◽  
Philip A. E. Pogge von Strandmann
Keyword(s):  
Growth Rate ◽  
Rate Increase ◽  
Environmental Parameters ◽  
Secretion Rate ◽  
Relative Growth ◽  
Rate Effects ◽  
Minor Part ◽  
Biasing Effects ◽  
Temperature Proxy ◽  
A Minor

Abstract. Isotopic ratios and concentrations of the alkaline earth metals Mg and Sr in biogenic calcite are of great importance as proxies for environmental parameters. In particular, the Mg / Ca ratio as a temperature proxy has had considerable success. It is often hard to determine, however, which parameter ultimately controls the concentration of these elements in calcite. Here, multiple Mg / Ca and Sr / Ca transects through a belemnite rostrum of Passaloteuthis bisulcata (Blainville, 1827) are used to isolate the effect of calcite secretion rate on incorporation of Mg and Sr into the calcite. With increasing calcite secretion rate Mg / Ca ratios decrease and Sr / Ca ratios in the rostrum increase. In the studied specimen this effect is found to be linear for both element ratios over a calcite secretion rate increase of ca. 150 %. Mg / Ca ratios and Sr / Ca ratios show a linear co-variation with increasing relative growth rate, where a 100 % increase in growth rate leads to a (8.1 ± 0.9) % depletion in Mg and a (5.9 ± 0.7) % enrichment in Sr. The magnitude of the calcite secretion rate effect on Mg is (37 ± 4) % greater than that on Sr. These findings are qualitatively confirmed by a geochemical transect through a second rostrum of Passaloteuthis sp. Growth rate effects are well defined in rostra of Passaloteuthis, but only account for a minor part of chemical heterogeneity. Biasing effects on palaeoenvironmental studies can be minimized by informed sampling, whereby the apex and apical line of the rostrum are avoided.

Understanding the growth and composition evolution of gold-seeded ternary InGaAs nanowires

Nanoscale ◽  
2015 ◽  
Vol 7 (39) ◽  
pp. 16266-16272 ◽  
Author(s):  
A. S. Ameruddin ◽  
P. Caroff ◽  
H. H. Tan ◽  
C. Jagadish ◽  
V. G. Dubrovskii
Keyword(s):  
Growth Rate ◽  
Growth Model ◽  
Nanowire Growth ◽  
Growth Trend

A simple nanowire growth model is established to explain the observed growth trend of ternary InGaAs nanowires, in particular, their growth rate and composition.

Non-Linear Corrosion Growth: A More Appropriate and Accurate Model for Predicting Corrosion Growth Rate

2016 ◽  
Author(s):  
M. Al-Amin ◽  
S. Kariyawasam ◽  
S. Zhang ◽  
W. Zhou
Keyword(s):  
Growth Rate ◽  
Case Studies ◽  
Growth Model ◽  
Measurement Errors ◽  
Linear Growth ◽  
Management Program ◽  
Linear Growth Rate ◽  
Metal Loss ◽  
Contributing Factors ◽  
Non Linear

External metal-loss corrosion is one of the major contributing factors for pipeline failures in North America. Corrosion growth rate plays a crucial role in managing corrosion hazard for gas and liquid pipelines. Quantifying the growth of corrosion over time is critically important for the risk and reliability analysis of pipelines, planning for corrosion mitigation and repair, and determination of time intervals for corrosion inspections. Conservatism in predicting the growth rate has significant engineering implication as non-conservatism can lead to critical anomalies being missed by mitigation actions and may cause pipeline failure; whereas, over conservatism can lead to unnecessary inspections and anomaly mitigations that may result in significant unnecessary cost to pipeline operators. As more and more pipelines are now being inspected by in-line inspection (ILI) tools on a regular basis, the ILI data from multiple inspections provide valuable information about the growth of corrosion anomalies on the pipeline. Although the application of linear growth rate calculated by comparing depths from two successive ILI is a common practice in the pipeline industry, research has shown that the growth of corrosion anomaly is non-linear and anomaly-specific. The authors of this paper have previously developed anomaly-specific non-linear corrosion growth model based on multiple ILI data. The objectives of this paper are to demonstrate the appropriateness of anomaly-specific non-linear corrosion growth model, and to illustrate the advantages of using non-linear corrosion growth model in the integrity management program. Two case studies were performed to illustrate the application of non-linear growth model by incorporating the measurement errors associated with the ILI tools, which include both the bias (constant and non-constant) and random scattering error. The findings of these case studies are presented in this paper.

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