Extract from a research brief by by C. Fred Bergsten and Joseph E. Gagnon, at Peterson Institute for International Economics, published December 2012:
More than 20 countries have increased their aggregate foreign exchange reserves and other official foreign assets by an annual average of nearly $1 trillion in recent years. This buildup — mainly through intervention in the foreign exchange markets — keeps the currencies of the interveners substantially undervalued, thus boosting their international competitiveness and trade surpluses. The corresponding trade deficits are spread around the world, but the largest share of the loss centers on the United States, whose trade deficit has increased by $200 billion to $500 billion per year. The United States has lost 1 million to 5 million jobs as a result of this foreign currency manipulation.
Read more at POLICY BRIEF 12-25: Currency Manipulation, the US Economy, and the Global Economic Order.
Hat tip to Simon Kennedy at Bloomberg.

Colin Twiggs is a former investment banker with almost 40 years of experience in financial markets. He co-founded Incredible Charts and writes the popular Trading Diary and Patient Investor newsletters.
Using a top-down approach, Colin identifies key macro trends in the global economy before evaluating selected opportunities using a combination of fundamental and technical analysis.
Focusing on interest rates and financial market liquidity as primary drivers of the economic cycle, he warned of the 2008/2009 and 2020 bear markets well ahead of actual events.
He founded PVT Capital (AFSL No. 546090) in May 2023, which offers investment strategy and advice to wholesale clients.