Renewable enery-the path to sustainability

This article seeks to address some lingering debates within sustainability studies by revealing the connections between renewable energy,consumption and sustainability.Using data from 30 OECD countries,the article amines the connections via regression and geospatial analysis Findings from the quantitative analysis indicate that about 50% of the variation in sustainability is accounted for by the degree of renewables consumption.The geospatial analysis visually illustrates the intimate connections between the two variables.Theoreticallv,renewable energy,relates to sustainability in three dimensions.The first dimension is economic.Relying on traditional fossil fuels eventually will bring our economy to a stop.Renewable energies,however,are able to secure our energy supply into an indefinite future.The second dimension links to ethics.To leave an intact planet to future generations is a moral responsibility of our generation.The current energy supply system is built on depletion of natural resources,while the sources of renewable energy are vast and constantlv replenished The last dimension is ecologic.How to allocate a porper apportionment of the global hiosphere between humankind and the other life on the earth is a critical issue related to sustainability.By using renewable energv,we can greatly reduce our impact on biodiversity and therefore strike a balance between humankind and other life.Overall the research suggests that developing renewables can and in many cases does sustain a nation's economic growth while simultaneously protecting the environment.It is a win-win situation.This finding undoubtedly points out a practical and realistic path for sudtainable development.     

Soft power and exports

This paper seeks to help establish a stylized fact: a country’s exports rise when its leadership is approved by other countries. I show this using a standard gravity model of bilateral exports, a panel of data from 2006 through 2017, and an annual Gallup survey that asks people in up to 157 countries whether they approve of the job performance of the leadership of China, Germany, Russia, the United Kingdom and the United States. Holding other things constant, a country’s exports are higher if its leadership is approved by the importer—“soft power” promotes exports. The soft power effect is statistically and economically significant; a 1% increase in leadership approval raises exports by around two‐thirds of a percent. This effect is reasonably robust, and different measures of soft power deliver similar results. I conservatively estimate that the >20 percentage point decline in foreign approval of American leadership between 2016 (the final year of Obama’s presidency) and 2017 (Trump’s first year) lowered American exports by at least U.S.$3 billion.     

Brands on the Brain: Neuro-Images of Advertising

Neuroscience is opening a new chapter of understanding in many fields. One such is how advertising works. For the first time we can directly 'see' some effects of advertisements on the brain's activity. This article reports two small-scale experiments into the differential effects of advertising's rational and emotional components. Advertising has long been seen as providing reasons to buy, however subtle. In academic research at least, the importance of emotion has often been downplayed. The preliminary experiment reported here shows how emotional ads are more likely to be remembered. The second experiment uses brain imaging to investigate the part of the brain which responds to emotionally-engaging ('affective') and reason-engaging ('cognitive') advertising stimuli. These are very early days in using brain-imaging techniques and these experiments are very exploratory. However, as the three Commentaries by Simon Broadbent, Thomas O'Guinn and Larry Percy suggest, along with other work, they may point towards a revolution in advertising research.     

Is Mobility in the United States Still Alive? Tracking career opportunities and income growth

Longitudinal data are used to compute income and earnings mobility in the 1970s and 1980s. The various strengths and weakness of different perspectives on mobility are assessed, with the change in real income or earnings being chosen as the one that most closely resembles the common-sense meaning of progress or decline. Care is taken to choose the proper age ranges and to define quantiles on the basis of 10-year income or earnings. Based on the Panel Study on Income Dynamics, this paper finds the share of family income losers among prime-age adults rose from 21% in the 1970s to 33% in the 1980s. This jump is reflected in a corresponding jump in the share of male earners with declining earnings over the same time period. Female earners, however, worked 44% more in the 1980s than the 1970s and fewer were on declining earnings paths. In terms of sub-populations, lower income and less educated groups had larger increases of income and earnings losses.     

Pricing Relocation–Redevelopment Projects for City Expansion: The Case in China

A solution to city expansion under limited land availability is relocation of existing habitants, demolition of existing buildings and redevelopment of new buildings. In the case of Chinese cities, however, such strategies have become a channel for municipalities to increase their revenue from sale of land and productivity from increased development, at the expense of low compensation to former occupants and vacant housing after development. We utilize a sequential real options pricing approach to find conditions when relocation/demolition and redevelopment in a finite time horizon are optimal and also to show what factors the governments can influence to delay or speed up redevelopment.     

Does anybody like water restrictions? Some observations in Australian urban communities*

Mandatory water restrictions continue to be the immediate response to urban water shortages in most major cities in southern Australia. Whilst generally rejected by economists on efficiency grounds, restrictions and the enforcement regimes used to invoke them are, nonetheless, viewed by some in the community as a positive way of dealing with water scarcity. Given the likelihood that urban water restrictions will persist for some time, there is value in understanding householders’ attitudes in this context. The impact and acceptability of differing approaches to enforcement is of particular interest, because this has wider ramifications for the administration of policy generally. This paper uses the results from a choice experiment to investigate the interplay between different components of a water restriction regime. In stark contrast to prevailing views that focus on the community benefits from ‘sharing the pain of water shortages’, results point to the significance of being able to inform on ones neighbours as a component of the enforcement regimes.