While processes differ somewhat among the three main manufacturers of cricket balls in international matches, all top-quality cricket balls are handcrafted to exacting specifications and standards. Their cork cores are tightly wound with layers of yarn and covered with a leather case with a slightly raised seam that is hand stitched. Once finished, the balls are shaped, stamped, and polished. The labor required is highly skilled and a single craftsman can stitch up to eight cricket balls per day. The yarn used is high-quality linen. Alternatives to leather from cowhide have been tested but found to be of lesser quality. Given this information, what can you conclude about the production function for cricket balls? What is the cost function?