What is the impact of the ORA_HZ_INCLUDE_REGIONAL_COUNTRY profile option?

The ORA_HZ_INCLUDE_REGIONAL_COUNTRY profile option is used to specify if the local country name must be displayed in an address.

Enable address format functions to include regional country. You must use this profile option to specify if the local country name must be displayed in an address. The profile option works only when the user profile you are logged in in the User Preference option is assigned a territory. For example if 'US' is the selected territory then all addresses that have country as US will not show country as US in the formatted address field by default. You can then use this profile option to display the address. Mark the profile value as Y to show the country in the formatted address. This setting is used while displaying readonly formatted address in the application pages.