We use a simple experience curve to project nuclear electricity intensity for eight countries which in turn is used to estimate net nuclear electricity generation for the years 2020, 2030, and 2040. We then compare our projected net nuclear electricity generations to those projected in the 2013...

Does the innovation process in knowledge-based technologies differ from the same process in the industrial technologies? Are innovations in the knowledge economy gaining intensity and speed? Does the knowledge economy need a new theory of technology cycle?These are the three key issues examined...

Under a wide variation of overfished stocks by countries and regions, this research examines whether regions and countries with low overfished ratios are increasing their fishing output to catch-up to regions and countries with higher overfished ratios. For the total group of 131 countries, the...

We examine the scaling relationship of pedestrian fatality counts as a function of the population size of 115 to 161 large U.S cities during the period of 1994 to 2011. We also examine the relationship of non-pedestrian and total traffic fatality counts as well. We used both annual and panel...

Two measures of fine particulate matter, PM2.5 exposure and PM2.5 exceedance are used to analyze convergence patterns of 212 and 108 countries during the period of 2000 to 2014. For PM2.5 exposure, sigma index diverges at the annual rate of 1.07%, while gamma index converges at -0.5% rate. For...

Sustainable Development Goals adopted by The United Nations seek to protect and prevent the extinction of threatened species by 2020. Several countries even in the 1990s began expanding species protection to reach the 2020 goal early. This research investigates whether countries with low level...

Despite a large number of studies on multiple socioeconomic factors influencing urban PM2.5 pollutions in China, only a few comparable studies appeared for developed countries. We analyzed the impact of three major socioeconomic factors of city income per capita, population density of city, and...

Since 1990, 2.1 billion people in the world gained access to improved sanitation. However, 2.4 billion people still do not use a basic toilet. We examine whether the country differences in the sanitation index existing in 1990 has been reduced and if so, how fast. We deploy the convergence...

The Millennium Development Goals by the United Nations included a global target for Improved Water Source to reach 88% of global population by 2015. By 2010, the global target was reached. However, there are still millions of people lacking the improved access to drinking water. We propose the...