The open secret for continued economic development is a viable and functioning infrastructure.

Its some of the first things economists who are hired by developing nations say.

Develop a good transportation system to ensure your workforce and supplies can get to you. Which then ensures your product gets distributed to your customers and potential new customers.

Have decent hospitals and health care so you have a viable pool of workers and are healthy enough to stay on the job. Training new workers costs a lot more money and you lose the associated expertise when problems arise.

Public utilities, nuff said.

Etc.