After rising nearly 20% over the last three years, the RMB has virtually stopped appreciating against the US Dollar, perhaps as a result of the credit crisis. At the same time, the US exports sector- previously one of the few bright spots of the sagging economy- has begun to stall. US Politicians have taken note, and are now renewing their efforts to persuade China to allow its currency to rise further. They are also agitated about China’s perpetually growing forex reserves (currently estimated at $2 Trillion), which are increasingly being deployed in sensitive areas. Meanwhile, the Chinese economy is growing at the slowest pace in years, and the Chinese government is resorting to desperate measures to prop it up. In short, allowing the RMB to rise, while placating US policymakers, is tantamount to economic suicide, and hence unlikely.

While other sovereign wealth funds have existed for nearly 50 years without controversy, "China appears far less likely than other nations to manage its sovereign wealth funds without regard to political influence that it can gain by offering such sizable investments."

Read More: US panel urges action on China currency, investing