Aging Curve in Sports

Talk about baseball (MLB) and about the aging curve in baseball. Include how free agency effects it (not wanting to spend money on someone on a decline) Talk about the typical age decline in baseball. You need to focus on Sports Economics, or even general economic peer reviewed journal articles. This is VERY important. Make sure to be descriptive and have a strong economic foundation to build off of. Along with Data, reflection, and research that promote.