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Our Team

The Martin Associates team is proficient and highly practiced in airport, maritime, shipyard and real estate economic planning and impact analysis.

Dr. John C. Martin, is president of Martin Associates, which he founded in 1986. He has provided economic, market and planning studies to most of the nation's seaports. He also provides ongoing economic and planning consulting services to terminal operators, ocean carriers, airports in the United States, and government agencies. Over the past 25 years Dr. Martin has conducted more than 500 economic, planning and marketing studies for seaports in the United States, Asia, Europe and South America.  He is involved in assessing the economic costs of terminal congestion at container terminals and of the West Coast Port shutdown. He also assesses the impact of restrictive trade policies on the marine transportation system. 

Dr. Martin was the principal author of United States Economic Growth and the Marine Transportation System for the Marine Transportation System National Advisory Council. The report documented the economic value of the MTS and further identified the key constraints and issues facing the MTS.  The paper was presented to Vice President Cheney as well as Department of Transportation Secretary Mineta as a transition paper for the Bush Administration.

As principal author of the Economic Impact of Steel Imports on the Nation's Marine Transportation System, Dr. Martin documented the economic impact of the steel imports into the United States and identified the potential cost of steel import quotas. In January 2002 Dr. Martin testified before the Council of Economic Advisors and the International Trade Policy Council regarding the imposition of the steel import quotas. 

Dr. Martin has also prepared the economic analysis for the 1999 ILWU contract negotiations at the West Coast ports.  His reports were used by the Clinton Administration to “encourage” the discontinuation of work slowdowns by the ILWU at the Ports of Oakland and Los Angeles/Long Beach.

Most recently, he was deeply involved in evaluating the economic impacts of the 2003 West Coast Port shutdown.  As part of the analysis, the Martin Associates economic impact models were reviewed and used by the U.S. Federal Reserve Board of Governors, the Bush Administration and the U.S. Council of Economic Advisors.  During the shutdown, he appeared on CNN, CNBC, the BBC, and NPR regarding the economic dislocations that occurred during and after the West Coast port shutdown. He is currently involved in assessing the potential impacts of various security measures imposed at U.S. port marine terminals.

He obtained a Doctorate in Economics from George Washington University, a Masters degree in Economics from the George Washington University and Bachelor of Arts (Cum Laude) in Economics from Millersville University. He has been providing consulting services to the maritime industry since 1974.

Contact John at 717-295-2428 or john@martinassoc.net


Mark Papineau is Director of Research with Martin Associates. He has conducted analyses of the transportation infrastructure, inland access and overland transportation services for a number of U.S. ports. He was the principal researcher for the economic assessment of the Virginia cruise industry.  He has conducted economic impact studies at several of the leading U.S. ports. Mr. Papineau developed the Martin Associates’ barge, truck and rail costing models.  In addition, he has developed the inland transportation cost analysis.  Mr. Papineau holds a Bachelor of Science (Cum Laude) in Mathematics and Computer Science from the State University of New York Maritime College.

Contact Mark at 717-295-2428 or mark@martinassoc.net

Michelle Wingenroth, a project manager with Martin Associates, is a specialist in economic impact analysis of seaports and airports.  She has conducted economic impact analyses for such ports as Seattle, Vancouver (WA), Oakland, Houston, Baltimore, Wilmington (NC), Portland (OR), Wilmington (DE), San Francisco, Tacoma and the 16 major U.S. ports located on the Great Lakes. Ms. Wingenroth was the lead researcher on the economic impacts of the Port of Pittsburgh, which was awarded the nation’s top honor in research and economic impact studies by the American Waterway Operators Association.  In addition, she was the lead researcher on the Port of Greater Baton Rouge Master Plan Study, where she conducted a detailed market analysis of breakbulk cargoes, project cargo and forest product exports. She holds a BS degree in Business Administration from Millersville University and has been with Martin Associates since 1993.


Contact Michelle at 717-295-2428 or michelle@martinassoc.net


Jeff Sweeney, a project manager with Martin Associates, is a specialist in economic impact analysis of seaports and airports. He has conducted impact studies for the Ports of Houston, Corpus Christi, Tacoma, Vancouver (WA), Wilmington (DE), Oakland, Baltimore, Philadelphia, North Carolina and Portland (OR). Mr. Sweeney developed a detailed database of Western Pennsylvania breakbulk exporters and importers to determine the potential use of the Port of Erie. He was the lead analyst on the Port of San Francisco Study, where he coordinated more than 1,000 telephone surveys to estimate the impacts of each of the Port’s lines of business. Mr. Sweeney holds a BA degree in Economics from Millersville University and has been with Martin Associates since 1994.

Contact Jeffery at 717-295-2428 or jeff@martinassoc.net

Mike Sarbaugh, a research associate with Martin Associates, assists in data collection tasks. He collected data for the demographic/enrollment studies conducted for the Hempfield School District and the Warwick School District . He developed demographic profiles and enrollment projections for Lancaster Country Day School , a private school in Lancaster County . In addition to the demographic/enrollment studies, he has participated in data collection efforts for both the seaport and airport activities in Seattle ( Port of Seattle and Seattle/Tacoma International Airport). He has participated in a seaport study at the Port of Houston and airport studies at the Baltimore/Washington International Airport, Portland International Airport and Hartsfield Atlanta International Airport . Mr. Sarbaugh is a graduate of Gettysburg University with a Bachelor of Art in Business Economics. He worked as an intern for two years and began working with Martin Associates full time in May, 2003.

Contact Mike at 717-295-2428 or mike@martinassoc.net


Elizabeth Martin, a research associate with Martin Associates, assists in data collection tasks. She has collected data for US & Canadian Great Lakes Ports, the State of Rhode Island, Port of Virginia, Delaware River Port Authority, Port of Houston and Port of Everett.  Elizabeth conducted research for the Maryland Port Administration on a MIZOD project where she interviewed and researched ports throughout the country to determine if they had similar programs.  She also researched the passenger and visitor patterns impacting the State of Hawaii and their airport system.  Elizabeth assisted with airport passenger surveys at Baltimore Washington Airport, Oakland International Airport and Bellingham International Airport.  She also assisted with cruise passenger surveys at the Port of Baltimore, Port Canaveral and Port of Bellingham.  Elizabeth obtained her MBA with a concentration in Supply Chain Logistics from Daniels College of Business at The University of Denver in 2009 and a BSBA in Marketing from The University of Denver in 2008.  Elizabeth has worked as an intern with Martin Associates since 2005 and began working full time in 2010.

Contact Elizabeth at 717-295-2428 or elizabeth@martinassoc.net


Ryan Keys is a research associate with Martin Associates.  He has collected data for US and Canadian Great Lakes Ports, Delaware River Port Authority, State of Rhode Island and Port of Oakland.  He has also assisted in research for studies conducted for Port of Erie and Cleveland Cuyahoga County Port Authority.  Ryan obtained a BA in Economics and French, Cum Laude, from Bucknell University in 2010.  He has been with Martin Associates since 2010.

Contact Ryan at 717-295-2428 or ryan@martinassoc.net


Marnie Bergman is joining the Martin Associates team with eight years experience in the logistics industry.  Ms. Bergman was an assistant manager in the transportation department at Saks Fifth Avenue, a logistics analyst with UPM-Kymmene, Inc., a global logistics manager with Scholastic, Inc. and a global transportation analyst with Becton Dickinson.  Ms. Bergman will be assisting in data collection for our Port of Houston economic impact study.  Ms. Bergman graduated with a BS in business logistics from The Pennsylvania State University in 1995.

Contact Marnie at 717-295-2428 or marnie@martinassoc.net


Becky Polito is the Office Administrator for Martin Associates.  She maintains and oversees all daily activity at Martin Associates, including communication with clients.  She also coordinates office events and the infrastructure of the office.

Ms. Polito holds a Bachelor of Arts in English from McDaniel College (formerly Western Maryland College) and has been with Martin Associates since 2004.

Contact Becky at 717-295-2428 or becky@martinassoc.net