There are three basic legal procedures for mergers and acquisitions: merger or consolidation, acquisition of stock, and acquisition of assets. Mergers and acquisitions can provide gains through synergy, revenue enhancement, cost reductions, lower taxes, and reducing capital needs. The net present value (NPV) of a merger is the value of firm B to firm A (V*B) minus the acquisition cost. An illustration shows how to calculate NPV for a cash acquisition versus a stock acquisition. Cash is generally better than stock if the acquisition has a positive NPV, while stock is better if the acquisition has a negative NPV because the loss is shared between firms.