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Author: search.filters.author.Perera, RHas files: Yes

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Now showing 1 - 6 of 6
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    PublicationOpen Access
    True nature of brain drain and brain gain: A MM-QR analysis on migration, remittances and FDI
    (Elsevier Ltd, 2026-12) Lokuliyana, A; Perera, J; Perera, R; Marina, N; Samarakkody, T; Kankanam Pathiranage, H.S
    With ever-changing global dynamics, understanding which factors promote or hinder economic growth is crucial for any country. Although many studies have examined the variables migration, remittances, and FDI, fewer have examined their collective impact on economic growth in an income-level analysis. A noticeable limitation of the few existing studies in the area is the inability of the mean-based models to address the heterogeneity in real-life distributions. The main objective of the study was to bridge the knowledge gap and address the heterogeneity concerns in mean-based models using MM-QR, meanwhile providing quantile-based evidence for economic theories such as endogenous growth theory, structural transformation theory and most importantly, brain drain theory. The study used a panel dataset of 118 countries from 1995 to 2023, categorized into 4 income levels. Results of the study supported the brain drain theory, where migration negatively affected poorer economies and hinted at the possible existence of brain gain in HICs. Continuous non-linear behavior of FDI, remittances explained the existence of developmental asymmetries and supported endogenous growth theory and structural transformation theory and reveals development threshold effects. Finally, the study underlines the importance of placing tailored policies to absorb migration, remittances and FDIs for economic growth and provides policy recommendations accordingly.
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    PublicationOpen Access
    Globalisation and environmental pressure in Europe: evidence from ecological footprint dynamics
    (Springer, 2026-05-12) Meegamaarachchi, C; Senavirathna, N; Perera, R; Reshini, P; Jayathilaka, R; Athalage, D
    Background: Environmental degradation, as assessed by the ecological footprint, remains a significant global challenge. Although research has examined its linkages with globalisation, evidence remains fragmented and region-specific, thereby leaving uncertainties regarding global patterns and temporal causality. Methods: This study examines the predictive causal dynamics based on Granger causality between globalisation and environmental degradation across 35 European countries from 1993 to 2023, using the panel and country-level Granger causality and Wavelet Coherence analyses. Given the strong regulatory architecture of the European Union, understanding how global economic integration interacts with environmental outcomes is crucial for designing effective regional environmental governance strategies. Results: The findings demonstrate that environmental-globalisation dynamics in Europe operate through multi-scale interaction rather than uniform country-level pathways. These findings highlight the importance of supranational regulatory coordination within the European Union, where environmental governance is shaped not only by national policies but also by regional regulatory frameworks. Furthermore, the study’s findings underscore the importance of regional and country-specific policy implications. These patterns suggest potential heterogeneity across countries; however, given the statistical limitations associated with multiple testing and the small sample size. These findings should be interpreted as indicative rather than conclusive evidence of institutional differences. Time–frequency analysis reveals that globalisation intensifies ecological pressure in the short-term, while it demonstrates mitigating effects over the medium-term. This pattern is consistently observed across the empirical analysis. Conclusion: By employing the ecological footprint as a comprehensive indicator and introducing the LJC heat map visualisation, this study advances methodological and empirical understanding of the globalisation-environmental nexus, while providing targeted policy insights for SDG-aligned sustainability strategies.
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    PublicationEmbargo
    Assessment of shop house enterprises in the Bangkok metropolitan area in view of environmental and health aspects
    (Elsevier, 2014-04-01) Potipituk, C; Perera, R
    This study aims to assess environmental and health impacts created by shop house enterprises and to identify the factors contributing to those impacts. The work was carried out in Bangkok, Thailand. This study used questionnaire surveys, interviews, and data collection. Responses were obtained from two different groups of stakeholders. First, the perceptions of owners and workers in shop house enterprises of their environmental management practices were determined. A second group of stakeholders consisting of affected community members, customers and relevant decision makers was queried to determine their perceptions of environmental performance of shop house enterprises. Using this strategy, perceived environmental conditions were determined by stakeholders and supported with actual measurement in air and noise pollution generated by shop house enterprises. The study results show that activities of shop house enterprise are perceived to generate adverse environmental and health impacts at various levels. The magnitude of each of these impacts suggests the priority at which policy interventions are needed to address these factors. We conclude that public policy to reduce environmental and health impacts should be done concurrently with efforts to mitigate factors contributing to environmental and health impacts generated by shop house enterprises. The effectiveness of existing environmental management measures for shop house enterprises by a decentralized administrative system requires further examination. It will be necessary to revisit existing environmental management practices for enterprises engaging in high risk activities.
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    PublicationOpen Access
    Impact of urbanization on the water resources and public health in Pathumthani Province, Thailand
    (2006-11-22) Perera, R; Pradhan, P
    This study attempts to analyze and describe the trend and pattern of urbanization, its impact on water resources as well as public health in Pathumthani province, which is an adjacent province of Bangkok Metropolitan. This province has good canal (khlong) network system. These khlongs have their own cultural and historical values. But the province has been promoted as a location for industrial development policy reforms introduced in Thailand in 1977. The study was carried out, using GIS as a tool, to identify the land use change. Major chemical parameters were selected to analysis water quality and cases registered data on water born diseases were analyzed to identify the impact on public health. The study reveals that growths have mainly occurred along the highways, river and khlongs sections. The findings highlight the situation of water quality in river and khlongs arising out of the process of urbanization in the province and its affect on public health.
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    PublicationOpen Access
    Construction waste management from a gender perspective
    (2008-09) Manowong, E; Perera, R
    Construction industry generates high volume of waste. The availability of dump sites for construction waste is decreasing and becoming a serious problem. Common waste management strategies such as Reduce, Reuse, Recycle (3Rs) can be provided for construction waste management (CWM). However, in order to be extensively implemented in construction industry, such practices need to be recognized by construction operatives and the general public whose behavior may be influenced by their attitudes and perception. A survey was carried out to investigate current situation of CWM in various regions of Thailand. Attitudes, perceptions, and roles of men and women in the construction-related sectors were analyzed. Recommendations are planners and decision-makers to improve the relevant parties’ perception and attitudes towards CWM policy planning and implementation in the GMS countries.
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    PublicationOpen Access
    Problems and prospects of utilizing canal banks to enhance the built-environment in Colombo
    (NSF, 2003-07-27) Perera, R
    Waterfronts are assets that enhance the quality of built-environment in urban areas. They are used as public and recreational spaces in many cities around the world. However, cities and towns in Sri Lanka most often turn their back to water bodies. Colombo has environmental assets in the form of a sea front, a lake and a canal network, yet not much attempt has been made to utilize their potential to enhance the quality of environment of the city until recent times. The lake is being rehabilitated while the canal network has already been rehabilitated under externally funded projects. It is observed that the rehabilitated canal network is fast falling back to its previous state of stagnation and pollution due to non-utilization of improved canals and banks. This paper focuses attention on possible strategies to sustain their improved environmental quality in order to enhance the built-environment of the city