Silicon Valley is the most salient example of high-tech industrial clusters. Public policymakersthroughouttheworldwouldliketolearnthesecretsofSiliconValley in order to build their own high-tech economies. The existing literature on ind- trial clusters, which traces back to Marshall (1920), focuses on the way in which ?rms bene't from locating in a cluster; it suggests that once a cluster comes into existence, it tends to reinforce itself by attracting more ?rms. However, a more important question is how to reach this critical mass in the ?rst place. In contrast to the literature, evidence suggests that entrepreneurs rarely move when they est- lish high-tech start-ups (Cooper and Folta, 2000). This contradicts the notion that location choice analyses lead entrepreneurs to a high-tech cluster. A high-tech industrial cluster such as Silicon Valley is characterized by c- centratedentrepreneurship. FollowingSchumpeter, weemphasizethefactthat"the appearance of one or a few entrepreneurs facilitates the appearance of others" (Schumpeter,1934). Weproposeanagent-basedcomputationalmodeltoshowhow high-tech industrial clusters could emerge in a landscape in which no ?rms existed originally. The model is essentially a spatial version of the Nelson-Winter model: Boundedly rational agents are scattered over an explicitly de?ned landscape. Each agent is endowed with some technology, which determines his ?rm's productivity (if he has one). During each period of time, an agent with no ?rm would make a decision as to whether he wants to start one. This decision is mostly affected by the behavior of his social contacts, who are all his neighbors.

An outstanding work, written to celebrate the seventieth birthday of Jagdish Bhagwati; the foremost defender of free trade and its role in developing economies in the world today, this rigorously academic and critical volume represents an important contribution to the understanding of many aspects of globalization. The editors, affiliated with four of the leading economics departments in the USA bring together a stellar line of contributors from across the world to discuss the themes and arguments raised by Bhagwati's latest work. A renowned professor of economics and regarded as one of the foremost international trade economist of modern times, Jagdish Bhagwati has written or edited over forty books including In Defence of Globalization and Free Trade Today as well as being the founding editor of Economics and Politics and The Journal of International Economics. A tribute to the great intellectual accomplishments and the inspiration that Jagdish Bhagwati provided to the field during his prolific and influential career, this book is a must read for all students and academics studying or working in international trade and development economics.

An outstanding work, written to celebrate the seventieth birthday of Jagdish Bhagwati; the foremost defender of free trade and its role in developing economies in the world today, this rigorously academic and critical volume represents an important contribution to the understanding of many aspects of globalization. The editors, affiliated with four of the leading economics departments in the USA bring together a stellar line of contributors from across the world to discuss the themes and arguments raised by Bhagwati's latest work.

A renowned professor of economics and regarded as one of the foremost international trade economist of modern times, Jagdish Bhagwati has written or edited over forty books including In Defence of Globalization and Free Trade Today as well as being the founding editor of Economics and Politics and The Journal of International Economics.

A tribute to the great intellectual accomplishments andthe inspiration that Jagdish Bhagwati provided to the field during his prolific and influential career, this book is a must read for all students and academics studying or working in international trade and development economics.

Silicon Valley is the most salient example of high-tech industrial clusters. Public policymakersthroughouttheworldwouldliketolearnthesecretsofSiliconValley in order to build their own high-tech economies. The existing literature on ind- trial clusters, which traces back to Marshall (1920), focuses on the way in which ?rms bene't from locating in a cluster; it suggests that once a cluster comes into existence, it tends to reinforce itself by attracting more ?rms. However, a more important question is how to reach this critical mass in the ?rst place. In contrast to the literature, evidence suggests that entrepreneurs rarely move when they est- lish high-tech start-ups (Cooper and Folta, 2000). This contradicts the notion that location choice analyses lead entrepreneurs to a high-tech cluster. A high-tech industrial cluster such as Silicon Valley is characterized by c- centratedentrepreneurship. FollowingSchumpeter, weemphasizethefactthat"the appearance of one or a few entrepreneurs facilitates the appearance of others" (Schumpeter,1934). Weproposeanagent-basedcomputationalmodeltoshowhow high-tech industrial clusters could emerge in a landscape in which no ?rms existed originally. The model is essentially a spatial version of the Nelson-Winter model: Boundedly rational agents are scattered over an explicitly de?ned landscape. Each agent is endowed with some technology, which determines his ?rm's productivity (if he has one). During each period of time, an agent with no ?rm would make a decision as to whether he wants to start one. This decision is mostly affected by the behavior of his social contacts, who are all his neighbors.