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Jeffrey Sachs 美國外交政策 從主導地位到全球問題解決

(2024-05-28 12:44:41) 下一個

美國外交政策——從主導地位到全球問題解決

傑弗裏·薩克斯,2017 年 1 月 15 日下午 5:20

https://www.bostonglobe.com/opinion/2017/01/15/foreign-policy-from-primacy-global-problem-solving/wPNTrpypiXbDNOeJTKB0CO/story.html#comments

如需閱讀傑弗裏·薩克斯的更多文章,請點擊此處。

幾十年來,美國外交政策從未像今天這樣不確定和充滿爭議。在特朗普政府上台之初,外交政策麵臨的挑戰對美國國家安全以及全球和平與繁榮具有根本意義。今天,我將推出一個新的每周係列,內容涉及美國和世界,將深入探討美國外交政策辯論,同時考慮到世界經濟、先進技術和人口趨勢的快速變化。我們的福祉和國家安全將取決於美國人對世界變化的理解,以及我們必須如何改變我們的態度和方法。

世界似乎充滿了問題:敘利亞戰爭;相關的歐洲難民危機;ISIS 和全球恐怖襲擊;俄羅斯對美國大選的明目張膽的黑客攻擊;中國在南海的領土主張不斷增加;朝鮮的核威脅不斷增加;等等。

然而,世界也提供了很多新的機會。中國、印度和非洲聯盟都擁有超過 10 億人口,經濟增長迅速,中產階級不斷壯大。信息革命繼續以驚人的速度推進。機器人技術、人工智能和無處不在的寬帶為國內和全球醫療保健、教育和可再生能源的重大突破提供了機會。

如果美國的外交政策隻關注威脅而不關注機遇,美國將錯過新技術革命可以帶來的福祉快速進步,而這將有助於穩定當今的衝突地區。美國外交政策麵臨的根本挑戰是確保美國安全,同時又不超出軍事預算,不將美國拖入不必要的戰爭,也不將我們的注意力和資源從建立明智、公平和可持續的美國和世界經濟的機會上轉移。

當前的外交政策辯論中存在三組截然不同的聲音。

第一組,我稱之為首要主義者,認為美國應該繼續以全球“首要地位”或地緣政治主導地位為目標,並通過無與倫比的美國軍事優勢來維持這種地位。這一組認為,美國的軍事主導地位對於全球穩定既可行又必要。

第二組,我稱之為現實主義者,認為美國必須接受(現實的)權力平衡,而不是美國的首要地位。然而,與首要主義者一樣,現實主義者主張“以實力求和平”。他們認為,為了保持全球權力平衡和維護美國安全,新的軍備競賽是必要的代價。

第三組人,我稱之為合作主義者,認為國家之間的合作不僅可行,而且對於避免戰爭和維持繁榮是必要的。在他們看來,合作將使世界避免美國和新興大國之間發生代價高昂且危險的新軍備競賽,這種競賽可能會演變成公開衝突。其次,合作將使美國乃至全世界能夠抓住當前技術革命帶來的機遇,促進經濟增長,克服全球變暖、新發疾病和大規模移民等全球弊病。

特朗普時代即將到來的外交政策之爭將使這三種願景相互對立,很可能是一場爭奪美國民心的激烈戰鬥。我堅定地站在合作主義陣營。我認為,對 21 世紀的美國來說,首要地位是一種危險的幻想,而現實主義對外交潛力過於悲觀。在本係列中,我將試圖解釋美國麵臨的選擇。

考慮一下美國當前對中國的政策辯論。

首要主義者認為,中國的崛起對美國的主導地位構成了不可接受的威脅。他們認為,美國應該投資數萬億美元進行新的軍備建設,而中國負擔不起。他們呼籲采取貿易和技術措施來限製中國未來的經濟增長。首要主義者回憶說,當羅納德·裏根在 20 世紀 80 年代領導軍事建設時,蘇聯因試圖跟上而破產了。他們認為,今天的中國也會發生同樣的情況。他們認為,美國單方麵軍備建設給美國帶來的好處將遠遠超過成本,其好處包括增強美國的威望、全球領導地位、國家安全和海外投資安全。

舉例來說,假設首要主義者呼籲投資 5 萬億美元進行新軍備建設,認為軍備建設將使美國從中國獲得 10 萬億美元的地緣政治優勢,美國將獲得淨收益

5 萬億美元,而中國則淨虧損 10 萬億美元。

現實主義者同意極端主義者的觀點,即美國單方麵加強軍事建設將給美國帶來淨收益,但他們認為中國也會與美國並駕齊驅。即便如此,現實主義者仍表示美國應該進行投資。他們的理由是:如果中國在軍備上投資 5 萬億美元而美國不投資,那麽中國將獲得 10 萬億美元的地緣政治優勢。然而,如果美國也投資 5 萬億美元用於新軍備,它就避免了 10 萬億美元的地緣政治損失。如果中國莫名其妙地決定不軍備,那麽美國將獲得 5 萬億美元的地緣政治利益淨收益。

現實主義者使用博弈論術語,認為軍備建設是美國(和中國)的“主導”戰略。如果中國軍備,那麽美國也必須軍備。如果中國選擇不武裝,那麽美國可以通過自己的軍事建設獲得巨大的地緣政治優勢。因此,無論中國做什麽,美國都應該武裝起來。由於中國是對稱的,所以兩國最終都會武裝起來,而且各自花費了 5 萬億美元,但最終卻停滯不前。現實主義者認為,這 5 萬億美元是確保美國地緣政治地位所必須付出的不可避免的代價。

合作主義者說,等等。我們兩國肯定會醒悟過來。軍備競賽將給每個國家造成 5 萬億美元的淨損失,而這筆錢兩國都迫切需要用於教育、醫療保健、可再生能源和尖端基礎設施。與其進行軍備競賽,不如讓我們與中國達成一致,雙方都不武裝。更好的是,讓我們同意將部分資源集中到新的高科技企業中,共同推進低碳能源、優質教育、全民醫療保健和其他重要的共同和全球目標的尖端全球解決方案。

謹慎的外交政策分析的本質是評估這些對立立場。

現實主義者則認為,與中國和俄羅斯的軍備競賽幾乎是不可避免的。他們指出,中國和俄羅斯的不良行為證明外交是無用的。中國正忙於擴大其在南海的軍事存在。俄羅斯正在侵入美國政界、轟炸阿勒頗並破壞烏克蘭的穩定。美國怎麽可能信任這些國家?

作為一名合作主義者,我說:“別這麽急。”從我們的角度來看,中國和俄羅斯的行動可能看起來很有侵略性,但從他們的角度來看,這些行動被視為防禦措施。許多中國戰略家有理由相信,美國將試圖遏製中國未來的經濟增長,並指出美國在軍事上的開支是中國的兩倍多(2015 年為 5960 億美元,而中國為 2150 億美元)。他們幾乎不覺得自己是侵略者。

俄羅斯戰略家同樣認為,近年來兩國關係惡化的罪魁禍首是美國,而不是俄羅斯。他們指出,美國多年來一直在幹涉俄羅斯的內政,甚至可能更具挑釁性的是美國還幹涉烏克蘭。俄羅斯戰略家特別反對美國試圖讓烏克蘭加入北約,這當然會把美國領導的軍事聯盟推到俄羅斯邊境,也反對北約在東歐部署導彈防禦係統,俄羅斯聲稱這些係統可用於進攻目的。(新的導彈部署是在美國於 2002 年單方麵退出美蘇反彈道導彈條約之後進行的。)

曾幾何時,這種首要觀點至少可以作為一個可實現的目標。想想 1945 年,當時美國約占世界經濟的 30%,主宰著每個工業部門和先進技術。當時,美國和歐洲戰略家認為,在二戰結束時蘇聯對東歐進行野蠻占領和鎮壓後,美國的全球領導地位對於阻止蘇聯顛覆戰後西歐和部分亞洲地區至關重要。即便如此,許多支持美國“遏製”蘇聯擴張的人也警告美國不要在美國外交政策目標中表現得過於誇張和過度。

現在的時代已經大不相同。不僅蘇聯早已不複存在,而且美國在世界產出中的份額也急劇下降,目前約為 16%。如果用一套共同的國際價格來衡量兩個經濟體,美國經濟實際上比中國經濟規模要小。在這些截然不同的條件下,美國的全球主導地位目標似乎既不必要,也難以實現。

另一個根本性變化是,全球變暖、新發疾病和大規模移民問題需要全球合作。如果美國和中國將對方視為軍事競爭對手,那麽他們就不太可能將對方視為環境可持續性的合作夥伴。我們的思維方式——衝突或合作——不僅會影響

我們不僅失去了軍備開支,還失去了控製全球變暖、抗擊新出現的疾病和共同投資尖端技術的機會。

第三個根本性變化是,由於聯合國及其各組成機構的存在,世界現在擁有維持全球合作的機構機製。重要的是,截至 2015 年,聯合國 193 個成員國已就可持續發展和應對氣候變化的新合作框架達成一致。多年來,我們努力工作,才就可持續發展目標和巴黎氣候協定達成全球一致協議。如果美國背棄這些來之不易的一致成就,那將是極其愚蠢和魯莽的。

在世界每個地區,美國都將麵臨衝突與合作的選擇。特朗普政府將如何做出這一選擇?特朗普對中國、核武器、貿易戰和臭名昭著的墨西哥牆的強硬言論,是預示著美國主導地位的確立,還是僅僅是競選時的虛張聲勢?

特朗普組建了一個充斥著反華派、保護主義者和軍事強硬派的政府。但他也聚集了像他一樣喜歡賺錢(事實上,賺了數十億美元)的商人,他們多年來積極投資俄羅斯、中國和其他新興經濟體,獲利頗豐。事實上,特朗普因與弗拉基米爾·普京交好而受到共和黨右翼的嚴厲批評,尤其是在俄羅斯電子郵件被黑客入侵的背景下。然而在這個問題上,特朗普而不是他的批評者似乎更傾向於恢複合作而不是衝突。當然,有一種理論認為,特朗普改善與俄羅斯的關係主要是為了對中國施加更大的地緣政治壓力,特朗普可能認為中國是美國真正的競爭對手。 (如果證據最終表明特朗普的同夥與俄羅斯合謀實施了黑客攻擊,那麽結果幾乎肯定會是美國陷入深刻的政治危機,短期內與俄羅斯合作的希望也將破滅。)

最重要的是,外交政策不能成為一種觀賞性運動,美國人隻能通過午夜的下一條推文來了解自己在世界上的地位。美國人需要通過研究各種選擇來學習,然後大聲而明確地表達出建設性合作的選擇,而不是危險的霸權主張和戰爭販子行為。

US foreign policy — from primacy to global problem solving

By Jeffrey Sachs ,January 15, 2017, 5:20 p.m.

https://www.bostonglobe.com/opinion/2017/01/15/foreign-policy-from-primacy-global-problem-solving/wPNTrpypiXbDNOeJTKB0CO/story.html#comments

For more pieces from Jeffrey D. Sachs, click here.

Not for decades has American foreign policy been as uncertain and contested as it is today. At the start of the Trump administration, the challenges of foreign policy are of fundamental significance for US national security, and for global peace and prosperity. Today I’m inaugurating a new weekly series on America and the world that will look deeply at the US foreign policy debate, taking into account the rapid changes underway in the world economy, advanced technologies, and population trends. Our well-being and national security will depend on Americans understanding how the world has changed and how we must change our attitudes and approaches to it.

The world seems to be a sea of problems: the Syrian war; the related European refugee crisis; ISIS and terrorist attacks across the globe; Russia’s brazen hacking of the US election; China’s rising territorial claims in the South China Sea; North Korea’s growing nuclear threat; and much more.

Yet the world also offers a host of new opportunities. China, India, and the African Union are each home to more than a billion people with rapid economic growth and a rising middle class. The information revolution continues to advance at a dazzling rate. Robotics, artificial intelligence, and ubiquitous broadband offer the chances for dramatic breakthroughs in health care, education, and renewable energy, at home and globally.

If US foreign policy is only about the threats and not the opportunities, the United States will miss out on the rapid advances in well-being that the new technological revolution can deliver, and that would help to stabilize today’s conflict zones. The fundamental challenge facing US foreign policy is to keep America safe without busting the military budget, dragging America into needless wars, or diverting our attention and resources from the opportunity to build a smart, fair, and sustainable US and world economy.

 

There are three distinct sets of voices in the current foreign policy debate.

The first group, whom I call the primacists, argues that the United States should continue to aim for global “primacy,” or geopolitical dominance, maintained by unrivaled US military superiority. This group sees US military dominance as both feasible and necessary for global stability.

The second group, whom I call the realists, argues that the United States must accept a (realistic) balance of power rather than US primacy. Yet like the primacists, the realists argue for “peace through strength.” They believe a new arms race is the necessary price to pay in order to keep the global balance of power and preserve US security.

The third group, whom I call the cooperatists, argues that cooperation between nations is not only feasible but necessary to avoid war and to sustain prosperity. In their view, cooperation would spare the world a costly and dangerous new arms race between the United States and the emerging powers, one that could spill over into open conflict. Second, cooperation would enable the United States and indeed the world to seize the opportunities opened by the current technological revolution to boost economic growth and overcome global ills that include global warming, emerging diseases, and mass migration.

The coming foreign policy battles in the Trump years will pit these three visions against each other, most likely in a fierce pitched battle for the hearts and minds of the American people. I am firmly in the cooperatist camp. I believe that primacy is a dangerous illusion for America in the 21st century, while realism is excessively pessimistic about the potential for diplomacy. In this series, I will seek to explain the options facing the United States.

 

Consider the current US policy debate regarding China.

The primacists see China’s rise as an unacceptable threat to US primacy. They argue that the United States should invest trillions of dollars in a new arms buildup that China could not afford. They call for trade and technology measures to limit China’s future economic growth. The primacists recall that when Ronald Reagan led a military buildup in the 1980s, the Soviet Union went bankrupt trying to keep up. They think the same would happen to China today. They argue that the benefits to the United States of a unilateral US arms buildup would far exceed the costs, with benefits in the form of enhanced US prestige, global leadership, national security, and the safety of overseas investments.

Suppose, as an illustration, that the primacists call for $5 trillion investment in new armaments, believing that the arms buildup will enable the United States to gain $10 trillion in geopolitical advantages from China, for a net US benefit of $5 trillion and a net loss to China of $10 trillion.

The realists agree with the primacists that a unilateral US military buildup would give the United States a net gain, but they believe that China would match US arms buildup. Even so, the realists say that the United States should make the investment. Their reasoning: If China invests $5 trillion in armaments while the United States does not, then China will take $10 trillion in geopolitical advantage. Yet if the United States also invests $5 trillion in new armaments, it avoids the $10 trillion geopolitical loss. And if, inexplicably, China decides not to arm, then the United States would garner a net gain of $5 trillion in geopolitical benefits.

 

Using game theory jargon, the realists argue that an arms buildup is America’s (and China’s) “dominant” strategy. If China arms, then the United States must do so as well. If China chooses not to arm, then the United States can secure a huge geopolitical advantage through its own military buildup. No matter what China does, therefore, the United States should arm. Since China reasons symmetrically, both countries end up arming, and each incurs a $5 trillion cost but ends up at a standstill. According to the realists, the $5 trillion is the unavoidable cost to pay to ensure America’s geopolitical standing.

Hold on, say the cooperatists. Surely our two countries can come to their senses. The arms race would cause a net loss of $5 trillion to each country, money that both countries urgently need for education, health care, renewable energy, and cutting-edge infrastructure. Rather than an arms race, let’s agree with China that neither side will arm. Better still, let’s agree to pool some of our resources into new high-tech ventures together to advance cutting-edge global solutions for low-carbon energy, quality education, health care for all, and other vital mutual and global goals.

 

The essence of careful foreign policy analysis is to size up these contrasting positions.

The realists, for their part, feel that an arms race with China and with Russia is more or less inevitable. They point to the bad behavior of China and Russia as proof that diplomacy is useless. China is busy expanding its military presence in the South China Sea. Russia is hacking US politics, bombing Aleppo, and destabilizing Ukraine. How could the United States possibly trust those countries?

As a cooperatist, I say, “Not so fast.” China’s and Russia’s actions might look aggressive from our point of view, but they are viewed as defensive steps from their vantage point. Many Chinese strategists plausibly believe that America will try to stifle China’s future economic growth and note that the United States outspends China on the military by more than 2-to-1 ($596 billion to $215 billion, in 2015). They hardly feel like the aggressors.

Russian strategists similarly argue that it was the United States, not Russia, that provoked the recent deterioration of relations in recent years. They point to US meddling in Russia’s internal politics going back many years, and perhaps even more provocatively, to America’s meddling in Ukraine as well. Russian strategists particularly object to the US attempts to bring Ukraine into NATO, which of course would bring the US-led military alliance right up to Russia’s border, and to NATO’s deployment of missile defense systems in Eastern Europe that Russia asserts could be used for offensive purposes. (The new missile deployments follow America’s unilateral withdrawal in 2002 from the US-Soviet ABM treaty.)

Once upon a time, the primacist view might have been at least plausible as an achievable aim. Consider 1945, when the United States constituted about 30 percent of the world economy and dominated every industrial sector and advanced technology. US global leadership at the time seemed necessary to American and European strategists to stop Soviet subversion of postwar Western Europe and parts of Asia following the Soviet Union’s brutal occupation and subjugation of Eastern Europe at the end of World War II. Even then, many supporters of US “containment” of Soviet expansion warned the United States against a grandiosity and overreach in America’s foreign policy objectives.

Times are very different now. Not only is the Soviet Union long gone, but the US share of world output has also declined sharply, to roughly 16 percent today. The US economy is actually smaller than China’s when both economies are measured by a common set of international prices. The US goal of global primacy seems both unnecessary and unachievable in these very different conditions.

Another fundamental change is the much greater need for global cooperation regarding global warming, emerging diseases, and mass migration. If the United States and China view each other as military competitors, they are far less likely to view each other as partners in environmental sustainability. Our mindset — conflict or cooperation — will shape not only our arms spending, but our chances to control global warming, fight newly emerging diseases, and invest together in cutting-edge technologies.

A third fundamental change is that the world now has the institutional machinery to sustain global cooperation, thanks to the United Nations and its various component institutions. Importantly, the 193 member states of the UN have agreed, as of 2015, on a new cooperative framework for sustainable development and for fighting climate change. It took hard work over many years to secure a unanimous global agreement on the Sustainable Development Goals and the Paris Climate Agreement. It would be especially foolhardy and indeed reckless to turn America’s back on those hard-won unanimous achievements.

In each region of the world, the United States will face the choice between conflict and cooperation. How will the Trump administration come down on that choice? Does Trump’s tough talk about China, nuclear arms, trade wars, and the infamous Mexican wall portend an assertion of American primacy, or was it merely bluster for the campaign trail?

Trump has assembled an administration filled with China-bashers, protectionists, and military hardliners. Yet he has also assembled business people, like himself, who like to make a buck (in fact, billions of them) and who have actively and profitably invested for years in Russia, China, and other emerging economies. Indeed, Trump is being harshly criticized from the Republican right for chumming up to Vladimir Putin, especially in the context of Russia’s e-mail hacking. Yet on this issue, it is Trump not his critics who seems intent on renewed cooperation rather than conflict. Of course, one theory holds that Trump aims to improve relations with Russia mainly to put even more geopolitical pressure on China, which Trump may deem to be America’s real competitor. (If the evidence eventually shows that Trump’s associates colluded with Russia in the hacking, the result would almost surely be a deep US political crisis and the collapse of any hopes for cooperation with Russia in the short term.)

Most importantly, foreign policy cannot be a spectator sport, where Americans learn about their place in the world through the next midnight tweet. Americans will need to learn by studying the options, and then to speak out, loudly and clearly, for the option of constructive cooperation over the dangerous claims of primacy and war-mongering.


Jeffrey D. Sachs is University Professor and director of the Center for Sustainable Development at Columbia University, and author of “The Age of Sustainable Development.”

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