Page 9 - IJPS-1-1

Bernardo Lanza Queiroz

care systems. They show that hypertension prevalence is higher in Japan, but diagnosis
and control is more prevalent in the U.S.
The third paper, by Gu, investigates how the concordance and discordance between
subjective and objective measures to identify subtype risk groups are related to subsequent
mortality. The results indicate significant predictive power of the subtype measure that
should be considered in public health programs for successful aging.
Salinari and de Santis, authors of our fourth paper, examine the acceleration of mortality
rates at older ages. They show a progressively earlier onset, and a steeper rise, in the rate
of aging in recent cohorts and argue that changes in the dietary regime might have a rela-
tion to the evolution of the mortality schedules.
The fifth paper, by Nawrotzki and colleagues, investigates whether climate change more
strongly impacts undocumented or documented migration from Mexico to the U.S. during
the 1980 s and 1990 s. They show that climate-related international migration from rural
Mexico was predominantly undocumented.
In the sixth paper, Denton and Spencer provide a simulation analysis of the long-term
effects of immigration on income. Their simulation results show that immigration, con-
centrated in working-age individuals, might be required to keep per capita income from
declining. They also show that sustainable economic growth and growth in per capita in-
come could be obtained by rapid productivity growth and delayed retirement.
The seventh paper, by Chang, investigates the job search process in the dynamic labor
market of China. More specifically, the paper examines the job search patterns of rural
migrants with those of urban natives. The results indicate that the job search process is
different for rural and urban workers, but the importance of networks is decreasing over
time.
The last paper, by Väisänen and Jones, examines whether and how women’s attempts to
get pregnant and their desire to avoid pregnancy changed over six months’ time as well as
which characteristics and circumstances were associated with these changes. They show
that transitions to more serious relationships are related to weaker pregnancy avoidance.
The results also indicate that some changes in employment situation were not related to
behavioral changes. Interestingly, they show that women in their late 20 s transition to
weaker pregnancy avoidance, suggesting that those ages are preferred for childbearing.
Finally, I would like to add that the journal is committed to rapid and high-quality refe-
reeing processes for all research that is submitted to the journal. I would like to encourage
researchers from different countries to consider IJPS as a venue to present their research,
and encourage researchers to keep the open access spirit by sharing with IJPS readers all
necessary information to replicate and reproduce research.

International Journal of Population Studies | 2015, Volume 1, Issue 3