1. Las Politicas socials vinculadas con la preservación histórica en Amércia Latina. CLAEH (Center for the Humanistic Study of the Economy), Montevideo, Uruguay, June 1, 2006.
2. Estrategias de la planificación: Un estudio comparativo entre continentes. Universidad ORT Uruguay, Montevideo, Uruguay, May 25, 2006
3. Espacios públicos en América Latina, Universidad ORT Uruguay, Montevideo, Uruguay, May 26, 2006
4. Plazas y Barrios, Universidad ORT Uruguay, Montevideo, Uruguay, May 27, 2006.
5. Globalization and Heritage Tourism. Allegheny College, Keynote Address, Latin American Studies Series, March 31, 2006, Meadville, PA.
6. Plazas and Barrios: Heritage Tourism and Globalization in the Latin American Centro Hstórico. Syracuse University, Maxwell School of Public Policy, February 17, 2006.
7. Comparative Approaches to Human Geography in the New Millennium. Department of Geography, Western Michigan University, February 3, 2006.
8. Plazas and Barrios: Heritage Tourism and Globalization in the Latin American Centro Hstórico. Phi Beta Kappa, Mu Chapter, annual luncheon. Virginia Tech, November 4, 2005.
9. Plazas and Barrios: Heritage Tourism and Globalization in the Latin American Centro Hstórico. Latin American Speaker’s Series, Radford University, Radford, VA, November 9, 2005
10. Plazas y Barrios: Un Enfoque Geográfico sobre los Cascos Históricos Latinomaericanos. Universidad de Chile, July 14, 2005
11. Plazas y Barrios. Universidad Católica de Chile. July 13, 2005.
12. Hacia una colaboracón académica. Universidad ORT Uruguay, Montevideo, July 15, 2005.
13. Cuba y la Revolución Socialista: Los impactos en la Geografía urbana de La Habana. Universidad General Sarmiento, Buenos Aires, July 4, 2005.
14. Planificación urbana en las ciudades de países desarrollados y en Desarrollo: El caso de América anglosajona y América Latina. University of Panama, April 12, 2005.
15. La Habana: Dos realidades urbanas. Museum of the Canal, Panama City, April 13, 2005.
16. Turismo, Patrimonio y globalización en América Latina. Patrimonial Center of Old Panama, April 14, 2005
17. Los centros históricos latinoamericanos y el proceso de la globalización, Panama Foreign Chancellor’s Building, Simón Bolívar Room, (Presented before the Chief Protocol Officer of the Panamanian Diplomatic Building and selected staff members of Panama’s Foreign Affairs corps), April 15, 2005.
18. Cuban tourism, socialism, and globalization in the new millennium. The Fifth Annual Louis E. Leipold Distinguished Geography Lecture and Honors Convocation. St. Cloud State University, St. Cloud, MN, April 22, 2004.
19. Planning, heritage tourism, and housing: Comparative Cuban Models. St. Cloud State University, Department of Geography, Atwood Memorial Center, Little Theater, public lecture, St. Cloud, MN April 23, 2004.
20. Public spaces: The case of Historic Districts in Spanish America. Invited talk, Mexican Center, LBJ School of International Affairs, University of Texas, March 4, 2004, Austin TX.
21. Urban Planning and Civil Society in Cuba’s ‘New’ Economy. Sweet Briar College, Amherst, VA, November 3, 2003.
22. Two lectures presented to the California State University – Long Beach and the San Francisco Museum of Art, both in Havana, Cuba, on Cuban civil society and the new economy, November 1 and 2, 2003.
23. Design Approaches in Latin American Historic Districts. Presented to the School of Architecture and Design, Philadelphia University, October 17, 2003.
24. Civil Society and the Cuba’s New Economy. Presented before the World Affairs Council of Philadelphia, October 17, 2003, Philadelphia.
25. Plazas and Barrios: Heritage Tourism and Globalization in the Spanish American Centro Histórico. Presented before the faculty and students of the Geography Department, Hunter College, December 19, 2002. New York, NY
26. Cuba’s economy. An invited talk presented at the Sam Rayburn Building, United States Congress, before Congressional staffers, State Department officials, and various NGOs in the nation’s capital. November 19, 2002.
27. Havana: Two Faces of the Antillean Metropolis. Invited talk given at the Miami Book Fair International, Miami, FL, November 21, 2002.
28. Havana: Historic Preservation. Plenary address delivered before the Historic Preservation session at the annual meeting of the National Trust for Historic Preservation, Cleveland, OH, October 10, 2002.
29. “Author Meets Critic.” Panel including Drs. Jill Hamberg (Empire State College) and Tom Angotti (Hunter College) to discuss co-authored book, Havana: Two Faces of the Antillean Metropolis, September 27, 2002, at The Cuba Project/Bildner Center, City University of New York.
30. Planning, Design, and Heritage Tourism in Havana. Graduate School of Design, Harvard University, Cambridge, Mass., April 1, 2002; and, The Modern Movement and Urban Planning in Cuba, Graduate School of Design, Harvard University, April 2, 2002.
31. The State, Planning, and Socialism’s Transition in Cuba. Vassar College, International Studies Program, February 12, 2002.
32. Heritage Tourism and Globalization in the Spanish American centro histórico. Department of Geography and Environmental Systems, University of Maryland Baltimore County, January 24, 2002.
33. Globalization, heritage, and historic preservation: The case of the Latin American city center. Gerald Hines School of Architecture, University of Houston, May 18, 2001.
34. Esperanzas y desafios en los centros históricos latinoamericanos: Una reflexión empírica y conceptual (Hopes and challenges in Latin American historic centers: An empirical and conceptual reflection), Gestão de Programas de Reabilitação Urbana (Managing Urban Rehabilitation), University of São Paulo, Brasil, November 25-28, 2000 (Sponsored by the University of São Paulo, the Ministry of Housing, and the Lincoln Institute).
35. Impuestos prediales en el centro histórico latinamericano. Jorge Tadeo University, and Department of Planning, Cartagena, Colombia, July 22, 2000.
36. Comparative Capital Investment Strategies in Latin American Historic Districts, West Virginia University, Department of Geography & Geology, December 3, 1999.
37. Cuba's Future, Future of Cuba. United States State Department, Latin American Office, sponsored seminar, Alexandria, Virginia, November 15, 1999.
38. Architecture, Planning and Daily Life in Havana. Invited lecture given at the Hines School of Architecture, University of Houston, April 12, 1999.
39. The social and political processes behind Havana's architecture and contemporary housing. Four lectures presented to the University of Pittsburgh, Semester at Sea, Institute for Shipboard Education, as Inter-port Lecturer, February 13-21, 1999, aboard SS Universe Explorer (lecturing to 610 students, 30 faculty, and 40 adult passengers).
40. Self-employed Workers in Cuba, Invited presentation before the U.S. State Department, Latin American Bureau, November, 1998.
41. Perspectivas comparativas entre los centros históricos latinoamericanos. Universidad de Camagüey, Camagüey, Cuba, June 2, 1998.
42. Alternative sources of real-estate capital in two Latin American cities. Lincoln Institute of Latin Policy. Cambridge, MA, March 27, 1998.
43. El significado de cuentapropistas en la nueva geografía urbana habanera. El Grupo para del Desarrollo Integral de la Capital, Havana, March 6, 1998.
44. Planning and privatization in a post-Papal Cuba. Department of Geography, University of Akron & Kent State University (two talks), April 10, 1998.
45. El San Telmo de Buenos Aires: Modernidad y Historia en el Metropolis. Faculty of Architecture, School of Visual Arts, Universidad de Cuenca, Ecuador, December 1, 1997.
46. La Habana Vieja: Desafíos y Oportunidades. Faculty of Architecture, School of Visual Arts, Universidad de Cuenca, Ecuador, December 2, 1997.
47. Los centros históricos latinoamericanos: La búsqueda de un contexto adecuado para su desarrollo. Faculty of Architecture, Universidad Jorge Tadeo Lozano, Cartagena, Colombia, July 9, 1997.
48. Havana: Two Faces of the Antillean Metropolis, Cuba Seminar, Queens College and City University of New York, May 16, 1997.
49. Urbanism without Capitalism: Havana Since 1959. Department of Geography, University of Tennessee, Knoxville, May 1, 1997.
50. Política Urbana, Uso de Suelo y Paisajes Urbanísticos. Centro Universitario de Diseño, Arte y Planificación, Universidad de Guadalajara, April 17, 1997.
51. Preservation, Policy and Praxis: Saving the Built Environment in Havana, Cuba. University of South Carolina, The Latin American Studies Program, Department of History, and The Applied History Program. November 21, 1996.
52. The New Federalism in Cuba. State, Civil Society and the Market. Presented at the conference, New Federalism, State and Local Government in Mexico: An International Research Workshop at The University of Texas at Austin, Institute of Latin American Studies, The Mexican Center, October 25-26, 1996.
53. Public services and daily living in Havana. Presented before the U.S. State Department and various Federal agencies. Part of an ‘Invited Experts’ speaker’s series. September 26, 1996. Washington, D.C.
54. La Privatización de los Servicios Públicos. La experiencia comparativa de las ciudades norteamericanas y latinoamericanas. El Colegio Mexiquense & Instituto de Seguridad Social del Estado de México y Municipios, Toluca, Mexico, September 5, 1966.
55. El Patrimonio Cultural de UNESCO. Qué diferencia hace? At the conference, Renovación Urbana en Centros Históricos. College of Architecture, Benemérita Universidad Autónoma de Puebla, May 8, 1996.
56. Comparative Land-Uses of Seven Latin American Cascos Históricos. The University of Texas, Institute of Latin American Studies, The Mexican Center, The Cultural Patrimony of Mexican Inner Cities. Mexican Center, December 8, 1995. 1995.
57. Sobre la Metodología de los Usos de Suelos y el Patrimonio Cultural. Centro de Artesanía y Cerámica de las Américas. Cuenca, Ecuador, November 22, 1995.
58. The Historical Centers of Latin American Cities, Five Trajectories. University of Tennessee, Knoxville, Department of Geography, March 30, 1995.
59. Urban Planning and Spatial Morphology in Contemporary Havana. University of Tennessee, Knoxville, Department of Geography, March 31, 1995.
60. The New Political and Regional Geography of Havana During the ‘Special Period.’ Elliott School of International Affairs, George Washington University, Washington, D.C. November 21, 1994.
61. Trade-offs, Crises and Conditioning: Preserving Havana’s Cultural Heritage. College of Architecture and Urban Studies, Henry H. Wiss Center for Theory and History of Architecture, VPI&SU, November 2, 1994.
62. The Urban Historical Geography of Havana. Grupo para el Desarrollo Integral de la Capital. Havana Cuba, June 6, 1994.
63. Transformations of the Built Environment in Havana During the "Special Period." Wellesley College, Wellesley, MA, March 17, 1994.
64. Lucha, sobrevivencia, y decadencia en el casco histórico latinoamericano. Presented at the Department of Geosciences, Federal University of Bahía, Salvador, Brazil, February 10, 1993.
65. Cuba and the Crisis in the 1990s. Instituto Superior Politécnico José Antonio Echeverría, Havana, Cuba, January 3, 1994.
66. La privatización de los servicios médicos en los países industrializados y el Cono Sur. Ministry of Public Health, Republic of Cuba and College of Medicine, University of Havana, January 5, 1993.
67. La politic de la privatización: Un análisis comparativo. United Nations' Economic Commission for Latin America and the Caribbean, Latin American Demographic Center, Santiago, Chile, July 11, 1992.
68. La privatización de la salud y los grupos de base. Centro de Estudios de la Política de Salud, Santiago, Chile, July 10, 1992.
69. La geografía médica y la economía política. Institute of Geography, Catholic University of Chile, Santiago, July 1, 1992.
70. El ataque en contra del estado benefactor. Department of Sociology, Universidad Nacional de Colombia, Santa Fé de Bogotá, June 10, 1992.
71. Los servicios públicos. Nine lectures and three seminars presented at the Graduate Program in Municipal Government, Universidad Externado de Colombia, Santa FÈ de Bogota, May 19-June 13, 1992.
72. La privatización de los servicios públicos urbanos: El caso de las ciudades norteamericanas. Presented at the Regional Western Planning Workshop, Pereira, Colombia, August 5, 1991.
73. Empowerment Strategies for Poor Urban Women Under the Chilean Dictatorship. Wellesley College, Latin American Studies Colloquium, Wellesley, MA, October 4, 1990.
74. A 'Thousand Points of Light' in the Southern Cone: The Impact of Health Services Privatization in the Shantytowns of Montevideo and Santiago. Babson College, International Business Seminar, Wellesley, MA, October 4, 1990.
75. The Political Economy of Health Care in Chile Since 1964, Pontificia Universidad Católica & University of California-Davis, Santiago, July 8, 1990.
76. Health Services Privatization: An Overview and Critical Perspective. Pan American Health Organization, World Health Organization, Washington, D.C. Mar. 28, 1990.
77. Health Care on the "social" Agenda in Chile. Presented at U.S. State Department conference on "Chile: Economic, Political, and Social Considerations under Civilian Rule." Westfields, Virginia, September 15, 1989.
78. Salud y régimen Militar. Colegio Médico de Chile (Chilean Medical Society), Santiago, July 28, 1989.
79. La Atención Primaria en Santiago de Chile: Hacia un Nuevo Enfoque. Department of Geography, University of Chile, College of Architecture and Urban Studies, Santiago, December 26, 1988.
80. Aspectos Comparativos del Estado Benefactor en el Cono Sur. Department of Geography. Universidad de la República, Montevideo, June 22, 1988.
81. Invited discussant: La Regionalización de los Servicios de Salud. South American Association of Hospital Administrators, Montevideo, June 4-8, 1988.
82. On the New Order of the Welfare State in the Southern Cone. Department of Geography, University of North Carolina, April, 1988.
83. Legitimating the 'Heavy Hand': The Struggle for Human Rights in Chile. Latin American Studies Colloquia, University of Iowa, December 9, 1987.
84. Accessibility to Primary Medical Care: Urban Service Delivery in Santiago de Chile. Department of Geography, Arizona State University, Tempe, May 23, 1986.
85. Towards a Reassessment of Medicare Reimbursement Calculations. Office of Benefits Research, Blue Cross-Blue Shield Association, Chicago, Illinois, May 6, 1986.
86. Medical Care Organization in Chile: A Geographer's View. Department of Geography, Middlebury College, Middlebury, Vermont, April 25, 1986.
87. Models and Mortality: Towards a Holistic Health Model in the United States. Thomas Jefferson Medical College, Philadelphia, December 16, 1985.
88. Grant Opportunities for Graduate Students. Four talks given to the Office of Instructional Resources, University of Florida, 1983-84.
89. Latins at the University Level: Implications for Instruction. Invited paper presented to Florida Governor Bob Grahm's appointed committee, Florida State Commission on Hispanic Affairs. University of Florida, Gainesville, Florida, 26 November 1984, (with S. Fradd).
90. La Contribución de la Geografía Médica a las Investigaciones de Salud. Institute of Geography, University of Chile, June 18, 1984, Santiago.