ECN 117 Final Exam Questions and 100% Correct Answers Latest 2026/27
Update - University of California
The highest grades will be given to clear and precise answers. Use your time wisely, and good luck. You
will be given 100 minutes to complete the exam. There are total of 75 points in the exam, so you should
allocate about 1 minutes per point.
A. [2 points each, total of 60 points]. Multiple choice questions
1. As countries become richer, the fraction of their population that emigrates tends to:
a. Decrease
b. Increase
c. First decrease, then increase
d. First increase, then decrease
e. Not change
2. Which of the following contain TWO true facts about international immigrations?
a. (1) In absolute numbers, the US is the largest destination country for immigrants; (2)
Compared to the 1920s, the region of origin of immigrants in the US is now characterized
by a lower fraction of Latin Americans
b. (1) The US is the country with the highest proportion of immigrants in its population; (2)
Compared to the 1920s, the region of origin of immigrants in the US is now characterized
by a lower fraction of Asians
c. (1) In absolute numbers, the US is the largest destination country for immigrants; (2)
Compared to the 1920s, the region of origin of immigrants in the US is now characterized
by a higher fraction of Latin Americans
d. (1) The US is the country with the highest proportion of immigrants in its population; (2)
Compared to the 1920s, the region of origin of immigrants in the US is now characterized
by a higher fraction of Asians
e. (1) In absolute numbers, the US is the largest destination country for immigrants; (2)
Compared to the 1920s, the region of origin of immigrants in the US is now characterized
by a lower fraction of Asians
3. Immigrants in the contemporary US are characterized by the following:
a. An overrepresentation (relative to natives) of high-school dropouts; higher fraction of
unauthorized than authorized immigrants
b. An overrepresentation (relative to natives) of PhDs in Science and Engineering; higher
fraction of unauthorized than authorized immigrants
c. An overrepresentation (relative to natives) of high-school dropouts; higher fraction of
authorized than unauthorized immigrants
d. An underrepresentation (relative to natives) of high-school dropouts; similar fraction of
unauthorized and authorized immigrants
e. An underrepresentation (relative to natives) of PhDs in Science and Engineering; similar
fraction of unauthorized and authorized immigrants
ECN 117 Economics of international migrations
, 4. Consider the Roy/Borjas model with one origin country and one potential destination. Wages in
the origin country are given by wo=6+3s, where “s” represents years of schooling. Wages in
destination country 1 are given by wd=3+4s. Assume that there is no cost of moving from the origin
to the destination. Who would choose to migrate from the origin to the destination?
a. Those with s<1 move, those with s>1 stay, those with s=1 are indifferent between
moving and staying
b. Those with s<1 stay, those with s>1 move, those with s=1 are indifferent between
moving and staying
c. Those with s<2 move, those with s>2 stay, those with s=2 are indifferent between
moving and staying
d. Those with s<2 stay, those with s>2 move, those with s=2 are indifferent between
moving and staying
e. Those with s<3 stay, those with s>3 move, those with s=3 are indifferent between
moving and staying
5. The figure above shows the relationship between wages and skills in the origin and the
destination country. Assume that the destination country introduces a migration subsidy of the
same amount for all potential migrants (regardless of their skill level). Such a subsidy would:
a. Lead to an increase in the number of migrants but a decrease in migrants’ average skill
levels
b. Lead to a decrease in the number of migrants and decrease in migrants’ average skill
levels
c. Lead to an increase in the number of migrants and an increase in migrants’ average skill
levels
d. Lead to a decrease in the number of migrants but and increase in migrants’ average skill
levels
e. It is not possible to know. Depends on how large the subsidy is
ECN 117 Economics of international migrations
Update - University of California
The highest grades will be given to clear and precise answers. Use your time wisely, and good luck. You
will be given 100 minutes to complete the exam. There are total of 75 points in the exam, so you should
allocate about 1 minutes per point.
A. [2 points each, total of 60 points]. Multiple choice questions
1. As countries become richer, the fraction of their population that emigrates tends to:
a. Decrease
b. Increase
c. First decrease, then increase
d. First increase, then decrease
e. Not change
2. Which of the following contain TWO true facts about international immigrations?
a. (1) In absolute numbers, the US is the largest destination country for immigrants; (2)
Compared to the 1920s, the region of origin of immigrants in the US is now characterized
by a lower fraction of Latin Americans
b. (1) The US is the country with the highest proportion of immigrants in its population; (2)
Compared to the 1920s, the region of origin of immigrants in the US is now characterized
by a lower fraction of Asians
c. (1) In absolute numbers, the US is the largest destination country for immigrants; (2)
Compared to the 1920s, the region of origin of immigrants in the US is now characterized
by a higher fraction of Latin Americans
d. (1) The US is the country with the highest proportion of immigrants in its population; (2)
Compared to the 1920s, the region of origin of immigrants in the US is now characterized
by a higher fraction of Asians
e. (1) In absolute numbers, the US is the largest destination country for immigrants; (2)
Compared to the 1920s, the region of origin of immigrants in the US is now characterized
by a lower fraction of Asians
3. Immigrants in the contemporary US are characterized by the following:
a. An overrepresentation (relative to natives) of high-school dropouts; higher fraction of
unauthorized than authorized immigrants
b. An overrepresentation (relative to natives) of PhDs in Science and Engineering; higher
fraction of unauthorized than authorized immigrants
c. An overrepresentation (relative to natives) of high-school dropouts; higher fraction of
authorized than unauthorized immigrants
d. An underrepresentation (relative to natives) of high-school dropouts; similar fraction of
unauthorized and authorized immigrants
e. An underrepresentation (relative to natives) of PhDs in Science and Engineering; similar
fraction of unauthorized and authorized immigrants
ECN 117 Economics of international migrations
, 4. Consider the Roy/Borjas model with one origin country and one potential destination. Wages in
the origin country are given by wo=6+3s, where “s” represents years of schooling. Wages in
destination country 1 are given by wd=3+4s. Assume that there is no cost of moving from the origin
to the destination. Who would choose to migrate from the origin to the destination?
a. Those with s<1 move, those with s>1 stay, those with s=1 are indifferent between
moving and staying
b. Those with s<1 stay, those with s>1 move, those with s=1 are indifferent between
moving and staying
c. Those with s<2 move, those with s>2 stay, those with s=2 are indifferent between
moving and staying
d. Those with s<2 stay, those with s>2 move, those with s=2 are indifferent between
moving and staying
e. Those with s<3 stay, those with s>3 move, those with s=3 are indifferent between
moving and staying
5. The figure above shows the relationship between wages and skills in the origin and the
destination country. Assume that the destination country introduces a migration subsidy of the
same amount for all potential migrants (regardless of their skill level). Such a subsidy would:
a. Lead to an increase in the number of migrants but a decrease in migrants’ average skill
levels
b. Lead to a decrease in the number of migrants and decrease in migrants’ average skill
levels
c. Lead to an increase in the number of migrants and an increase in migrants’ average skill
levels
d. Lead to a decrease in the number of migrants but and increase in migrants’ average skill
levels
e. It is not possible to know. Depends on how large the subsidy is
ECN 117 Economics of international migrations
