Vietnam vs. Cambodia

When Vietnam was reunified in 1975, the country had a youthful age structure and a high fertility rate.  The population growth rate slowed dramatically during the next 25 years, as fertility declined and infant mortality and life expectancy improved.  The country's adoption of a one-or-two-child policy in 1988 led to increased rates of contraception and abortion.  The total fertility rate dropped rapidly from nearly 5 in 1979 to 2.1 or replacement level in 1990, and at 1.8 is below replacement level today.  Fertility is higher in the more rural central highlands and northern uplands, which are inhabited primarily by poorer ethnic minorities, and is lower among the majority Kinh, ethnic Chinese, and a few other ethnic groups, particularly in urban centers.  With more than two-thirds of the population of working age (15-64), Vietnam has the potential to reap a demographic dividend for approximately three decades (between 2010 and 2040).  However, its ability to do so will depend on improving the quality of education and training for its workforce and creating jobs.  The Vietnamese Government is also considering changes to the country's population policy because if the country's fertility rate remains below replacement level, it could lead to a worker shortage in the future.

Vietnam has experienced both internal migration and net emigration, both for humanitarian and economic reasons, for the last several decades.  Internal migration - rural-rural and rural-urban, temporary and permanent - continues to be a means of coping with Vietnam's extreme weather and flooding.  Although Vietnam's population is still mainly rural, increasing numbers of young men and women have been drawn to the country's urban centers where they are more likely to find steady jobs and higher pay in the growing industrial and service sectors.

The aftermath of the Vietnam War in 1975 resulted in an outpouring of approximately 1.6 million Vietnamese refugees over the next two decades.  Between 1975 and 1997, programs such as the Orderly Departure Program and the Comprehensive Plan of Action resettled hundreds of thousands of Vietnamese refugees abroad, including the United States (880,000), China (260,000, mainly ethnic Chinese Hoa), Canada (160,000), Australia (155,000), and European countries (150,000). 

Cambodia is a predominantly rural country with among the most ethnically and religiously homogenous populations in Southeast Asia: more than 95% of its inhabitants are Khmer and more than 95% are Buddhist.  The population's size and age structure shrank and then rebounded during the 20^th century as a result of conflict and mass death.  During the Khmer Rouge regime between 1975 and 1979 as many as 1.5 to 2 million people are estimated to have been killed or died as a result of starvation, disease, or overwork - a loss of about 25% of the population.  At the same time, emigration was high, and the fertility rate sharply declined.  In the 1980s, after the overthrow of the Khmer Rouge, fertility nearly doubled and reached pre-Khmer Rouge levels of close to 7 children per woman, reflecting in part higher infant survival rates.  The baby boom was followed by a sustained fertility decline starting in the early 1990s, eventually decreasing from 3.8 in 2000 to 2.9 in 2010, although the rate varied by income, education, and rural versus urban location.  Despite continuing fertility reduction, Cambodia still has a youthful population that is likely to maintain population growth through population momentum. Improvements have also been made in mortality, life expectancy, and contraceptive prevalence, although reducing malnutrition among children remains stalled.  Differences in health indicators are pronounced between urban and rural areas, which experience greater poverty.

Cambodia is predominantly a country of migration, driven by the search for work, education, or marriage.  Internal migration is more prevalent than international migration, with rural to urban migration being the most common, followed by rural to rural migration.  Urban migration focuses on the pursuit of unskilled or semi-skilled jobs in Phnom Penh, with men working mainly in the construction industry and women working in garment factories.  Most Cambodians who migrate abroad do so illegally using brokers because it is cheaper and faster than through formal channels, but doing so puts them at risk of being trafficked for forced labor or sexual exploitation.  Young Cambodian men and women migrate short distances across the Thai border using temporary passes to work in agriculture, while others migrate long distances primarily into Thailand and Malaysia for work in agriculture, fishing, construction, manufacturing, and domestic service.  Cambodia was a refugee sending country in the 1970s and 1980s as a result of the brutality of the Khmer Rouge regime, its ousting by the Vietnamese invasion, and the resultant civil war.  Tens of thousands of Cambodians fled to Thailand; more than 100,000 were resettled in the US in the 1980s.  Cambodia signed a multi-million dollar agreement with Australia in 2014 to voluntarily resettle refugees seeking shelter in Australia.  However, the deal has proven to be a failure because of poor conditions and a lack of support services for the few refugees willing to accept the offer.