Articles

Accelerating innovation in clean energy technologies is a policy priority for governments around the world aiming to mitigate climate change and to provide affordable energy. Most research has focused on the role of governments financing R&D and steering market demand, but there is a more limited understanding of the role of direct government interactions with startups across all sectors. The authors  propose and evaluate the value-creation mechanisms of network resources from different types of partners for startups, highlighting the unique resources of government partners for cleantech startups. 

The defining question about global order for this generation is whether China and the United States can escape Thucydides’s Trap. The Greek historian’s metaphor reminds us of the attendant dangers when a rising power rivals a ruling power—as Athens challenged Sparta in ancient Greece, or as Germany did Britain a century ago. Most such contests have ended badly, often for both nations, a team of mine at the Harvard Belfer Center for Science and International Affairs has concluded after analyzing the historical record. In 12 of 16 cases over the past 500 years, the result was war. When the parties avoided war, it required huge, painful adjustments in attitudes and actions on the part not just of the challenger but also the challenged.

Iran’s top nuclear negotiator was heading back to Tehran on Sunday to consult with his nation’s leadership, as negotiators remained divided over how to limit and monitor Tehran’s nuclear program and even on how to interpret the preliminary agreement they reached two months ago.

Providing societies with reliable energy services, fighting energy poverty and mitigating climate change entail a crucial infrastructure component. Both the energy access and the low carbon challenge require more decentralized energy solutions and a change in the energy infrastructure paradigm. Yet, physical energy infrastructure co-evolves with socio-economic institutions, actors and social norms. This may produce inertia against change. The energy challenge also requires solutions at multiple scales and may entail elements of common pool resource problems. Therefore, the governance of energy infrastructure needs to be polycentric. This allows for contextualization, experimentation and innovation. The article concludes by sketching routes of further research into the energy infrastructure governance nexus in social science research.

By analyzing the institutions that have been created to stimulate energy technology innovation in the United States, the United Kingdom, and China—three countries with very different sizes, political systems and cultures, natural resources, and histories of involvement in the energy sector—this article highlights how variations in national objectives and industrial and political environments have translated into variations in policy.

The effort to address climate change stumbled with the failure to pass cap-and-trade. What should happen now? Five experts, including the Harvard Project's Joe Aldy, discuss the future of U.S. climate and energy policy.

Realist scholars have long debated the question of how much power states need to feel secure. Offensive realists claim that states should constantly seek to increase their power. Defensive realists argue that accumulating too much power can be self-defeating. Proponents of hegemonic stability theory contend that the accumulation of capabilities in one state can exert a stabilizing effect on the system. The three schools describe different points along the power con­tinuum. When a state is weak, accumulating power increases its security. This is approximately the situation described by offensive realists. A state that con­tinues to accumulate capabilities will eventually triggers a balancing reaction that puts its security at risk. This scenario accords with defensive realist as­sumptions. Finally, when the state becomes too powerful to balance, its oppo­nents bandwagon with it, and the state’s security begins to increase again. This is the situation described by hegemonic stability theory. These three stages delineate a modified parabolic relationship between power and secu­rity. As a state moves along the power continuum, its security increases up to a point, then decreases, and finally increases again. This modified parabolic re­lationship allows scholars to synthesize previous realist theories into a single framework.

The 1990s were years of great optimism in Europe. As the Europeans were putting the finishing touches on their economic community, observers pre­dicted that political and military integration would soon follow. Optimism has turned to pessimism since the turn of the century, however. Most analysts believe that the economic community is in crisis, and hardly anyone predicts the creation of a political or military counterpart to it. Why has the European project run into trouble and what does the future hold? The answers to these questions are largely to be found in the distribution of power. It was the over­whelming power of the Soviet Union that drove the Western Europeans to consider a variety of integration initiatives and to build and maintain the European Community (EC) during the Cold War. In 1991 the collapse of the Soviet Union deprived them of a compelling geostrategic reason to pursue further integration or even to preserve their economic community. As a result, the Europeans have made no real effort to establish a political or military com­munity over the past two decades, and the EC has slowly started to fray. As long as there are no significant changes in the balance of power going forward, worse times lie ahead.

"...[T]he credits a utility earns for a given source of generated electricity should be inversely proportional to the CO2 emissions associated with that source. Renewables and nuclear would earn full credit whereas natural gas and fuel oil sources would earn less, and conventional coal less than that. If properly structured, this can provide the right incentives for investment and retirement of electricity-generating capacity and the right incentives for dispatch from existing capacity."

PDP Co-Director Dr. Ashton B. Carter explores the daunting list of national security challenges facing the next American president.