Narrow Results

This paper examines the population trends in Singapore over the next 50 years. The component method is employed in the projection calculations. The aging of Singapore's resident population is well-known. The projections show that the Singaporean population will reach a maximum of about 3.63 million in the year 2025 before steadily declining to reach 3.32 million by the year 2050. The population projections were also done in terms of gender and ethnic groups. Dependency ratios, weighted and unweighted were also calculated assuming different retirement ages. Remarks on some policy implications of these projections are provided.

This study examines the extent to which changing the composition of college majors among working-age population may affect the supply of human capital or effective labor supply. We use the South Korean setting, in which the population is rapidly aging, but where, despite their high educational attainment, women and young adults are still weakly attached to the labor market. We find that engineering majors have an advantage in various outcomes such as likelihood of being in the labor force, being employed, obtaining long-term position, and earnings, while Humanities and Arts/Athletics majors show the worst outcomes. We then conduct a back-of-the-envelope calculation of the impact of the recently proposed policy change to increase the share of engineering majors by 10% starting in 2017. Our calculation suggests that the policy change may have a positive but small impact on labor market outcomes.

With the acceleration of population aging in China, the number of pure beneficiaries in the economy is higher than that of pure contributors, which seriously affects fiscal sustainability. This paper probes into the influence path and mechanism of population aging to fiscal sustainability in China, and numerically simulates the extent of such influence using a generational accounting method. Aging reduces the tax base and enlarges fiscal expenditure by reducing the quantity of labor and labor productivity, changing the resident’s consumption level and structure, cutting down the saving rate, and widening the gap between social security revenue and expenditure, all of which challenge the balance of the fiscal system. The empirical results show that the problem of inequality in terms of the fiscal burden across generations is extremely prominent and the per capita tax burden under different birth rate assumptions is obviously different. Under the pressure of aging, in order to maintain the fiscal balance, the future per capita tax burden will be increased by a maximum of 55.9%. Although increasing productivity and reducing interest rates can help reduce that gap, their roles are far less important than the role of fertility. In order to cope with aging, the fiscal system should see an increase in income, a reduction in expenditure, and a redeployment of structure. That is, while at the same time perfecting the tax system and widening the tax base, the expenditure structure should also be optimized.

This paper estimates the impact of population aging on bilateral pork trade between 32 Asian countries (regions) by using a gravity model that incorporates old-age dependency ratio variables. The Poisson pseudo-maximum-likelihood regression performs better than the ordinary least-squares method in the estimations. An aging labor force stimulates pork exports because it reduces pork production costs by supplying the pork industry with low-wage older laborers. An aging consumer-based economy increases pork imports because older consumers usually have higher incomes. Population aging has both a time characteristic and a country characteristic on pork trade in Asia. Increasing birth rates and reforming the pork industry from the supply side are two feasible policy recommendations for aging Asian countries (regions).

Since the 1970s, due to the combination of the declining birthrate and rising longevity, the speed of population aging in Japan has been more dramatic than in any other developed country. Consequently, the growth of the working population, which had been faster than the growth of the total population, has gradually become slower in recent years than the latter in Japan. Moreover, similar rapid demographic changes are taking place at various speeds in all prefectures. By introducing demographic variables into empirical models of regional economic growth, which is based on prefecture-level panel data for the period 1980–2010, this paper shows that the recent demographic changes in Japan have had significant effects on its regional economic growth: the contribution of the growth rate difference between the working population and the total population to per capita Gross Regional Domestic Product (GRDP) growth rate, i.e., the demographic bonus, has disappeared. In addition, the growth rate of the aged population (65 years old and over) has had a very significant negative effect on per capita GRDP growth rate, while the growth rate of the young population aged 0–14 has had a significant positive effect. The findings of this study imply that Japan’s population aging and other ongoing demographic changes will continue to depress economic growth in all prefectures. Given the low probability of a significant rise in the birth rate and the rapid increase in the local labor supply, it is important for all prefectures in Japan to raise the quality of their labor-force and improve productivity. Meanwhile, effectively attracting young skilled workers to migrate from other regions/countries should be a key policy issue for both local and central governments in Japan.

In this work we analyze interbeat cardiac time series arising of three groups: healthy young and healthy elderly subjects and patients with congestive heart failure. We use the fractal dimension method proposed by Higuchi. We find that fractal organization is different for each group. In the case of healthy young subjects only one value of the fractal dimension is necessary to fit the interbeat data, whereas in the cases of healthy elderly and patients with congestive heart failure a crossover behavior in the fractal dimension is present but in opposite directions. By means of a "zoom" on the hinges of the crossover point interesting effects of aging are presented. Finally, we discuss our results in the context of heart interbeat dynamics.

We briefly describe how mean-field glass models can be extended to the case where the bath and friction are non-thermal. Solving their dynamics, one discovers a temperature with a thermodynamic meaning associated with the slow rearrangements, even though there is no thermodynamic temperature at the level of fast dynamics. This temperature can be shown to match the one defined on the basis of a flat measure over blocked (jammed) configurations. Numerical checks on realistic systems suggest that these features may be valid in general.

Is Japan’s aging and, more recently, declining population hampering its growth and reflation efforts? Exploiting the demographic and economic variation in the prefectural data between 1990 and 2007, we find that aging of the working age population has had a significant negative impact on the total factor productivity (TFP). Moreover, prefectures that aged at a faster pace experienced lower overall inflation, while prefectures with higher population growth experienced higher inflation. The results give strong support to the notion that demographic headwinds can have a non-trivial impact on the TFP and deflationary pressures.