Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

In aging, one size does not fit all

15.12.2015

New research from the International Institute for Applied Systems Analysis (IIASA) provides a suite of measurements that could replace conventional measures of age, supporting smarter policies for retirement and health care.

Conventional measures of age usually define people as “old” at one chronological age, often 65. In many countries around the world, age 65 is used as a cutoff for everything from pension age to health care systems, as the basis of a demographic measure known as the “old-age dependency ratio,” which defines everyone over 65 as depending on the population between ages 20 and 65.


© Silent 47 Images | Dreamstime.com

In new study in the journal Population and Development Review, IIASA researchers Warren Sanderson and Sergei Scherbov provide new measures to replace the old-age dependency ratio.

“There are better measures available for every aspect of population aging to which it is applied,” says Sanderson. “Aging is a suite of multidimensional phenomena. In this study we deal with a number of aspects of aging and show that better measures exist for all of them.”

Previous research by the team [ www.reaging.org ]has shown that defining people as “old” at age 65 no longer fits the real-world data, as people live longer, healthier lives around the world. The new study pulls together a collection of demographic methods that replace the old-age dependency ratio for a variety of purposes, providing more useful information for policymakers as well as demographic research.

For example, health care costs on average increase significantly for people in their last few years of life. Yet as people live longer, those last few years come later and later, and people may stay healthy well into their 60s and 70s. When projections of future health care costs use age 65 as the cutoff, they may massively overestimate future costs to a health care system. The new study therefore proposes a health-care specific calculation that takes into account the postponement of deaths that occur because of the increase in life expectancy.

The old-age dependency ratio is also based in part on traditional retirement age being around 65. But today, a growing number of people over 65 are still working, and in response to increased life expectancy, many countries have begun increasing their public pension ages. Yet increasing pension ages can be unfair to younger generations, who may work longer and get less retirement money than previous generations.

The study includes a new proposal for an “intergenerationally equitable pension age,” in which each generation receives as much in pension payouts as they pay in, the average pension as a percentage of salary is the same for all generations, and the pension tax remains the same.

“There are many policy issues for which good estimates of the future consequences of aging are needed,” says Scherbov. “In some instances, the large exaggerations in the extent of aging produced by the conventional measures could lead to inappropriate policies.”

Further information and details on the new measures are available at: www.reaging.org/indicators

Reference
Sanderson W, Scherbov S (2015). Are we overly dependent on conventional dependency ratios? Population and Development Review. 41(4): 687–708. 15 December 2015. http://onlinelibrary.wiley.com/doi/10.1111/j.1728-4457.2015.00091.x/abstract

MSc Katherine Leitzell | idw - Informationsdienst Wissenschaft
Further information:
http://www.iiasa.ac.at

More articles from Health and Medicine:

nachricht The genes are not to blame
20.07.2018 | Technische Universität München

nachricht Targeting headaches and tumors with nano-submarines
20.07.2018 | Universitätsmedizin der Johannes Gutenberg-Universität Mainz

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Future electronic components to be printed like newspapers

A new manufacturing technique uses a process similar to newspaper printing to form smoother and more flexible metals for making ultrafast electronic devices.

The low-cost process, developed by Purdue University researchers, combines tools already used in industry for manufacturing metals on a large scale, but uses...

Im Focus: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

A smart safe rechargeable zinc ion battery based on sol-gel transition electrolytes

20.07.2018 | Power and Electrical Engineering

Reversing cause and effect is no trouble for quantum computers

20.07.2018 | Information Technology

Princeton-UPenn research team finds physics treasure hidden in a wallpaper pattern

20.07.2018 | Materials Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>