## Economists

id | name | age | experience
--- | --- | --- | ---
1 | Alice | 30 | 8
2 | Bob | 28 | 6
3 | Charlie | 32 | 10
4 | David | 40 | 7
5 | Eva | 35 | 9

## Statisticians

id | name | age | experience
--- | --- | --- | ---
1 | Frank | 31 | 5
2 | Grace | 29 | 4
3 | Heidi | 33 | 7
4 | Isaac | 42 | 6
5 | Judy | 34 | 5

## DataTypes

data_type_id | type_name
--- | ---
1 | Demographics
2 | Financial
3 | Healthcare
4 | Environmental
5 | Transportation

## Jobs

job_id | economist_id | statistician_id | data_type_id
--- | --- | --- | ---
| (→ Economists.id) | (→ Statisticians.id) | (→ DataTypes.data_type_id)
1 | 1 | None | 1
2 | 2 | 3 | 2
3 | None | 4 | 3
4 | 5 | None | 4
5 | None | 6 | 5

## Skills

skill_id | skill_name
--- | ---
1 | R Programming
2 | Python
3 | SQL
4 | Excel
5 | Tableau