$20 to 70 billion? Bullsh!t.
The real transit fees Pakistan will generate is actually $100 billion a year. Want to know where I got that figure from? I made it up.
The Port of Singapore is the 2nd busiest port in the world, only generates 5% of it's GDP which comes out to $15 billion of it's $305 Billion GDP. And that is thanks to trade agreements.
http://www.iesingapore.gov.sg/Trade...greements/free-trade-agreements/Singapore-FTA
Suez canal contriubtes about $5-7 billion.
Panama Canal is $2 billion.
CPEC is just China offering Pakistan a loan.
Do you have any "REAL" experience at this scale with Global Programs, Economic Growth and Strategy? You post tells me you don't have any. Then why try to sound like a PHD in Economic Strategy when there are no credentials? Allow someone with experience to explain vs. making judgements based on limited knowledge.
Suez Canal, Panama Canal and Port of Singapore are wrong comparisons. For example, the first two are "water ways", and the third one's a port. Their contribution to any nation's GDP can't equate to their entire economy as these are individual projects by themselves and thus the return, etc is also based on one project and its completion.
The CPEC on the other hand, isn't "A" project. I've tried to explain this before. Pakistanis and the Chinese, both, use this term wrong. The CPEC is a Program (meaning its a Portfolio of many projects). Twp of the many CPEC projects include building a Water Way like the Port of Singapore and the Suez Canal. Then, there is another phase of Road network connectivity through different countries, then another phase to bring businesses like manufacturing, mining electronics, distribution to this area, for faster shipping (through land and sea) to ME and Russian states, etc. So now imagine, many projects producing their respective outcome.......it would be MUCH larger than a Suez Canal or a Panama Canal or a Singapore Port. Not to mention, take a look at how much consumers port of Singapore serves? Through Gawader, Pakistan is about to serve a similar sized population of Western China, without having to care for that population as its citizens (meaning no worry of providing schools, benefits, jobs, homes, etc, etc). So supporting a 200-300 million people outside of Pakistan, in revenue means many more billions of dollars. MUCH larger scale operation than the port of Singapore, or Dubai, or the Suez Canal do. I don't think you can comprehend the magnitude I am talking about here to be frank.
America's growth in the Mid-West (From Ohio to Nevada) was once attributed to just ONE network of highways called I-70 (and associated smaller I-40), this highway goes through the Center of the US and connects the East Coast vs. the West. Now apply the same logic on the CPEC, it connect multiple countries and combined population of Pakistan, Western China and some Central Russian states of over 450 Million people (close to half a billion people would get benefit off of it). Can you imagine the magnitude of my explanation??
Lastly, wherever this route goes from, it would generate hundreds of new Cities, Towns, Thousands of new Real Estate Communities with Millions of new homes. The land around this entire route till China will get expensive and people will get rich through it, they 0will buy new homes, cars, will build businesses, will establishes better schools, universities, hospitals, etc, etc, more jobs will be created to support all these activities and more income will come into the system, resulting in more Taxes. Hundreds of billions of dollars is not that far. Take a look at your stock market, it nearly doubled up in the past 3 months due to Pakistani EFT's getting the official status of "Emerging Market Securities", resulting in massive foreign investment as the market is now available to invest into from US and other countries.
All these are the direct effect of this economic revival program. The benefits will transform the entire Pakistan. The port of Dubai, Singapore, or the Suez Canal (examples you gave), would look like PEANUTS in-front of the revenue this massive program will generate.
Here, some Western references for you to read up on:
http://blogs.wsj.com/frontiers/2015/06/10/pakistan-in-line-for-upgrade-to-emerging-market-status/
http://www.bloomberg.com/news/artic...h-spurs-pakistan-s-biggest-ipo-in-eight-years
Forbes report: ‘Pakistan a potential global turnaround story’
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Published: August 5, 2015
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PHOTO: Carnegie Endowment for International Peace
ISLAMABAD:
Pakistan has the potential to be a global turnaround story with its improving security dynamics and political stability, Forbes magazine said.
An article titled ‘Pakistan: The Next Colombia Success Story?’ by Daniel Runde published in the American business magazine said PM Nawaz Sharif is governing with a competent cabinet.
It added that he was working with a majority coalition and in tandem with the military to deliver peace and security.
The writer compared Pakistan with Colombia of late 1990s but said Colombia today has a free trade agreement with the USA and a stable GDP growth rate.
The security situation has also vastly improved. “Similarly, Western headlines on Pakistan today gloss over the progress on the security front, the increased political stability, and incremental progress on the economic front,” he said.
Daniel said the US policymakers and business leaders need to look at Pakistan beyond the security lens. He said getting American relationship right with Pakistan will require deeper thinking and action on issues around trade and investment, education, and broader economic development.
On action against the Taliban, he said Pakistan’s improving security dynamic is the first change to note.
. He's writing this from an American perspective. I dislike China just as much as he does. But, in the mix of our dislike for the Chinese government, it doesn't mean we kill objectivity towards Pakistan and her growth. 
