Social Science > Emigration and Immigration

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International Monetary Fund. Asia and Pacific Dept
This Selected Issues paper investigates why New Zealand’s inflation is higher and further from target than comparator economies considering two main hypotheses: (1) the persistence of pandemic era shocks, and (2) strong migration inflows fuelling demand. The paper finds that, like in many advanced economies, expansionary fiscal and monetary policy, high global commodity prices, exchange rates, and high maritime transport costs all fed into higher inflation. However, unique for New Zealand, the delayed reopening of the economy likely caused a postponed demand shock relative to similar economies. Results show that the impact of these shocks decay rapidly over time, suggesting positive short-term inflation dynamics. With an eye for what lies ahead, the paper finds that large migration waves are associated with short-run increases in inflation, but that these effects are relatively modest and no longer significant after four years. Instead, the long-run dynamics show evidence that migration can lead to significant long-term gains to productivity, output, and capital growth. Countries with tight labor markets exhibit similar patterns to those without, except the inflationary effects of migration dissipate faster.
Cristina Cattaneo
,
Emanuele Massetti
,
Shouro Dasgupta
, and
Fabio Farinosi
We estimate a bilateral gravity equation for emigration rates controlling for decadal weather averages of temperature, precipitation, droughts, and extreme precipitation in origin countries. Using the parameter estimates of the gravity equation, we estimate global, regional, and country-by-country emigration flows using different population and climate scenarios. Global emigration flows are projected to increase between 73 and 91 million in 2030-2039; between 83 and 102 million in 2040-2049; between 88 and 121 in 2050-59, and between 87 and 133 million in 2060-2069. Changes in emigration flows are mainly due to population growth in the origin countries.
Paula Beltran
and
Metodij Hadzi-Vaskov
Our work is positioned at the intersection of migration and climate change—two key forces shaping the economic outlook of many countries. The analysis explores: (i) the relative importance of origincountry vs destination-country factors in explaining migration patterns; (ii) importance of climate disasters as driver of cross-border migration; and (iii) the importance of climate-driven migration on the overall impact of climate on macroeconomic outcomes. It arrives at the following main findings. First, both origin-country and destination-country contribute to explaining migration outflows from EMDEs, although only the global shocks seem important for advanced economies. Second, climate disasters are important for explaining the origincountry migration shocks in LICs and EMDEs, are especially relevant for smaller countries, and lead to migration of both genders, albeit relatively more for males out of LICs. Third, important portion of climate’s overall impact on economic outcomes—especially agricultural GDP, remittances, and inequality—is captured via climate-driven migration. Finally, higher investment in climate-resilient infrastructure can reduce the impact of climate on cross-border migration, and thereby, result in potentially important economic gains.
Diogo Baptista
,
John A Spray
, and
Ms. Filiz D Unsal
We develop a quantitative spatial general equilibrium model with heterogeneous house-holds and multiple locations to study households’ vulnerability to food insecurity from cli-mate shocks. In the model, households endogenously respond to negative climate shocks by drawing-down assets, importing food and temporarily migrating to earn additional income to ensure sufficient calories. Because these coping strategies are most effective when trade and migration costs are low, remote households are more vulnerable to climate shocks. Food insecure households are also more vulnerable, as their proximity to a subsistence requirement causes them to hold a smaller capital buffer and more aggressively dissave in response to shocks, at the expense of future consumption. We calibrate the model to 51 districts in Nepal and estimate the impact of historical climate shocks on food consumption and welfare. We estimate that, on an annual basis, floods, landslides, droughts and storms combined generated GDP losses of 2.3 percent, welfare losses of 3.3 percent for the average household and increased the rate of undernourishment by 2.8 percent. Undernourished households experience roughly 50 percent larger welfare losses and those in remote locations suffer welfare losses that are roughly two times larger than in less remote locations (5.9 vs 2.9 percent). In counterfactual simulations, we show the role of better access to migration and trade in building resilience to climate shocks.
International Monetary Fund. Asia and Pacific Dept
This Selected Issues paper utilizes a new macro-model capturing food insecurity, migration and trade in Nepal. It shows that low yields and remoteness explain a majority of the difference in prevalence of food insecurity across districts in Nepal; both climate shocks and persistent climate-change increase food insecurity and disproportionately harm the most vulnerable; and lower wages in migrant destinations would reduce remittances, increase food insecurity and lower welfare. The paper then presents and quantifies a number of potential policies to address these issues. The paper quantifies the impact of a number of policy options (cash transfers, better infrastructure, and improved agricultural productivity) to address food insecurity and climate change. In addition to climate shocks, persistent climate change will lower welfare, increase food insecurity, and migration. Given the model results show that agricultural productivity is a key determinant of food security, Nepal can learn from other countries policies including in agricultural extension, improved community water management techniques, and climate resilient agriculture in line with the National Adaptation Plan.