Seasonal migration programs are widely used around the world, yet there is little evidence as to their development impacts. A multiyear prospective evaluation of New Zealand's Recognised Seasonal Employer (RSE) seasonal worker program allows us to measure the impact of participating in this program on households in Tonga and Vanuatu. Using a propensity-score prescreened difference-in-differences analysis based on surveys fielded before, during, and after participation, we find that the RSE has indeed had positive development impacts that dwarf those of other popular development interventions. It has increased income, consumption, and savings of households; durable goods ownership; and subjective standard of living. The results also suggest that child schooling improved in Tonga.

Bigger firms pay higher wages. This note reports tests of the hypothesis that this big-firm premium (BFP) occurs because workers in big firms are more skilled. We use the International Adult Literacy Survey, which gives richer skill measures than those typically available in labor market surveys, to measure the BFP in nine countries with and without controls for worker skill. The results show that the BFP is not as universal as is often suggested, but in countries where it exists controlling for skills does little to reduce the size of the BFP.

Data on New Zealand manufacturing plants are used to examine the impact of trade liberalization on plant exit. Recent theories suggest that the prospect of a declining market might cause firms to adopt strategic behavior that causes low cost plants to exit first. This hypothesis is generally unsupported. Surviving plants were larger, lower cost, and were owned by specialized firms with few plants. Plant costs were more important than firm size for explaining the plant-closing behavior of single-plant firms. Diversified, multiplant firms were more likely to close plants and were influenced by plant size but not plant costs.

We use a migration lottery program to overcome the double-selectivity problems posed by migration. We compare a wide range of outcomes for the remaining household members of Tongan emigrants with those of members of similar households who were unsuccessful in the lottery, with the policy rules determining which household members can move. Multiple hypothesis testing procedures are used to examine robustness. The overall impact on households left behind is largely negative in terms of resource availability, and both sources of selectivity matter, leading studies that fail to address them adequately to misrepresent the impact of migration on households.