Diversification strategies seek to increase profitability through greater sales volume from new products and markets. There are three main types: concentric adds related products, horizontal adds products for existing customers, and conglomerate adds unrelated products. Defensive strategies protect market share, profitability, and mind share. They include joint ventures, retrenchment through cost reduction, divestiture by selling divisions, and liquidation by selling all assets. Diversification and defensive strategies allow firms to expand operations and lessen risks of being attacked by competitors.