移民对来源国和目的国分别有什么影响？
What effects does migration have on origin and destination countries?
对来源国，移民汇款能增收但可能流失人才（“人才外流”）；对目的国，填补劳动力空缺、贡献税收，也带来融合与公共服务压力。净效应取决于政策与结构，难以一概而论。
For origin countries, remittances raise income but may drain talent (brain drain); for destinations, migrants fill labor gaps and pay taxes but add integration and service pressures. Net effects depend on policy and structure—no single verdict.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
John Weeks,《Population: An Introduction to Concepts and Issues》Cengage 多版
J. R. Weeks, Population: An Introduction to Concepts and Issues, Cengage, various editions
独立核验依据 · Independent verification: 核验依据 2 ARCHIVE 标识 populationintrod0000week_o0n4：Population : an
#汇款 #人才外流
“推拉理论”如何解释人们为什么迁移？
How does "push-pull theory" explain why people migrate?
推力是原居地的不利（战乱、失业、灾害），拉力是目的地的吸引（工作、安全、教育）；两者共同决定迁移的规模与方向。
Push factors are home-place negatives (war, unemployment, disaster); pull factors are destination attractions (jobs, safety, education); together they shape migration's scale and direction.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
John Weeks,《Population: An Introduction to Concepts and Issues》Cengage 多版
J. R. Weeks, Population: An Introduction to Concepts and Issues, Cengage, various editions
独立核验依据 · Independent verification: 核验依据 2 ARCHIVE 标识 populationintrod0000week_o0n4：Population : an
#推拉理论 #迁移
什么是“国际移民”？
What is "international migration"?
国际移民指人跨越国界、在另一国停留一段时间以上的移动，按原因可分为劳务、家庭团聚、求学与避难等。
International migration is crossing a border to stay in another country for a period, by reason of work, family reunion, study, or asylum.
难度 入门 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
John Weeks,《Population: An Introduction to Concepts and Issues》Cengage 多版
J. R. Weeks, Population: An Introduction to Concepts and Issues, Cengage, various editions
独立核验依据 · Independent verification: 核验依据 2 ARCHIVE 标识 populationintrod0000week_o0n4：Population : an
#移民 #跨国