On the Internet, find a recent annual report for the company Merck \& Co., Inc. Based on information in that report, determine the following:

(a) The nature of the business of Merck.

(b) The new developments by Merck.

(c) The new acquisitions or partnerships if any.

(d) Stated concerns of the company.

(e) A financial ratio analysis, including:

(1) Current ratio.

(2) Acid-test ratio.

(3) Equity ratio.

(4) Return on total assets.

(5) Return on equity.

(6) Operating margin.

(7) Profit margin.

(f) Your stock purchase recommendation, including reasons for buying or selling the stock.