Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_15823 ( "District" text, "Counties Represented" text, "Party" text, "First Elected" real, "Committee" text )

### Question ###
What is the Highest first elected year that has a district of 06.0 6, and a committee of economic matters?

### Accurate SQL ###

SELECT MAX("First Elected") FROM table_15823 WHERE "District" = '06.0 6' AND "Committee" = 'economic matters'